The best motorcycle suspension systems balance fitment, ride comfort, adjustability, and the kind of riding you do. My best overall pick is the Legend Suspension REVO-A for its adjustable 13-inch shock format, while the Legends Aero Air Suspension stands out for Touring riders who want air-based height adjustment, and the Progressive Suspension 412 is a simpler conventional-shock alternative. The main tradeoff is between air systems that can change ride height and coil shocks that offer a more straightforward setup, with compatibility and installation needs narrowing the field further. A remote reservoir may appeal to riders seeking more adjustment, but it does not make an otherwise incompatible shock a fit. Read on for my comparison, selection criteria, and advice on matching a system to your motorcycle and riding priorities.
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Key Takeaways
- Fitment separates this lineup: most options target Harley-Davidson Touring models, while the Mofun shocks name Sportster and Dyna applications and the 190 mm adjustable shock is presented as universal, so buyers need to verify exact model-year and mounting compatibility.
- Air systems and coil shocks serve different priorities: the TCMT and other Touring air kits suit riders seeking air-based adjustment, while the Progressive 412 and Legend REVO-A use conventional shock formats.
- The REVO-A stands out for adjustable shock performance: its 13-inch format and adjustable design make it the strongest all-around choice for riders who want a coil-shock setup with tuning flexibility.
- Remote reservoirs are not a universal upgrade: the TOFR, TCMT remote-reservoir Touring shocks, and Mofun option may interest riders seeking that design, but fitment and adjustment details still matter more than the reservoir label alone.
- Several similarly named air kits require close comparison: TCMT, the Rear Air Suspension Kit, and the Rear Air Ride Suspension Set list overlapping Touring year ranges, so buyers should confirm the exact model, mounting points, and included hardware before ordering.
| TCMT Rear Air Ride Suspension Kit for Harley Touring Models, 1994–2025 |  | Best for Adjustable Ride Height | Brand: TCMT | Fitment: Harley Touring models, 1994–2025 | Adjustment: Height-adjustable | VIEW LATEST PRICE | See Our Full Breakdown |
| TOFR Remote Reservoir Rear Suspension Shocks for Harley Touring (2014–2025) |  | Best for Loaded Touring Adjustability | Brand: TOFR | Manufacturer: YSN-Moto | Model: HD-RSS-002-BLARED@#2607 | VIEW LATEST PRICE | See Our Full Breakdown |
| Progressive Suspension 412-4063B Rear Shock, 11.5-Inch, Black Anodized |  | Best for Simple Preload Tuning | Brand: Progressive Suspension | Model number: 412-4063B | Position: Rear | VIEW LATEST PRICE | See Our Full Breakdown |
| Legends Aero Air Suspension for 1999–2019 FLH Touring Models, Black |  | Best for a Defined FLH Touring Fitment Window | Brand: Legends | System type: Air suspension | Color: Black | VIEW LATEST PRICE | See Our Full Breakdown |
| Legend Suspension REVO-A Adjustable Rear Motorcycle Shocks, 13 in., Standard, Black |  | Best for a Longer Adjustable Shock | Brand: Legend Suspension | Model: 1310-0959 | Product type: Rear motorcycle shocks | VIEW LATEST PRICE | See Our Full Breakdown |
| Rear Air Suspension Kit for 1994–2023 Harley-Davidson Touring Models |  | Best for Adjustable Ride Height | Fitment: Harley-Davidson Touring models, 1994–2023 | Position: Rear | Collapsed length: Approximately 9.64 in (24.5 cm) | VIEW LATEST PRICE | See Our Full Breakdown |
| Mofun 12″ Remote Reservoir Rear Shocks for Harley Sportster and Dyna |  | Best for Fine-Tuning Sportster and Dyna Handling | Length: 12 in (305 mm) | Compatibility: Harley Dyna 1991–2017; Sportster 1988–2022 | Compression adjustment: 18 levels | VIEW LATEST PRICE | See Our Full Breakdown |
| TCMT Remote Reservoir Rear Suspension Shocks for Harley Touring Models |  | Best for Touring Load Adjustments | Product type: Remote-reservoir rear suspension shocks | Compression damping: 19 levels | Rebound damping: 12 levels | VIEW LATEST PRICE | See Our Full Breakdown |
| Universal 190 mm Adjustable Motorcycle Shock Absorber |  | Best Compact Replacement for Small Vehicles | Brand: Bediffer | Fit: Universal; intended for scooters, mopeds, electric vehicles, and mini motorcycles | Hole-center distance: 190 mm (7.48 in) | VIEW LATEST PRICE | See Our Full Breakdown |
| Rear Air Ride Suspension Set for Select Harley-Davidson Touring Models, 1994–2023 |  | Best for Broad Touring-Model Coverage | Brand: GELUOXI | Product type: Rear air ride suspension set | Compatible models: Select Touring, CVO, Electra Glide, Road Glide, Road King, Street Glide, Tour Glide, and Ultra Limited models | VIEW LATEST PRICE | See Our Full Breakdown |
| Progressive Suspension 412-4037C Chrome 11-Inch Rear Shock |  | Best for Load-Adjustable Cruiser Replacement | Brand: Progressive Suspension | Model number: 412-4037C | Position: Rear | VIEW LATEST PRICE | See Our Full Breakdown |
| motorcycle suspension system | Brand |
|---|---|
| TCMT Rear Air Ride Suspension | TCMT |
| TOFR Remote Reservoir Rear Sus | TOFR |
| Progressive Suspension 412-406 | Progressive Suspension |
| Legends Aero Air Suspension fo | Legends |
| Legend Suspension REVO-A Adjus | Legend Suspension |
| Rear Air Suspension Kit for 19 | Woosphy |
| Mofun 12" Remote Reservoir Rea | — |
| TCMT Remote Reservoir Rear Sus | — |
| Universal 190 mm Adjustable Mo | Bediffer |
| Rear Air Ride Suspension Set f | GELUOXI |
| Progressive Suspension 412-403 | Progressive Suspension |
More Details on Our Top Picks
TCMT Rear Air Ride Suspension Kit for Harley Touring Models, 1994–2025
I’d shortlist the TCMT Rear Air Ride Suspension Kit for Harley Touring owners who want to change rear ride height, not just tune damping. Its stated 2–3-inch lowering range gives it a different purpose from the TOFR remote-reservoir shocks, which focus on rebound adjustment and load control rather than lowering. Nickel-plated brass push-to-connect fittings and a manifold-style dump valve are included, offering a defined air-management setup.
The tradeoff is that air suspension adds fitment and setup conditions: the maker’s zero-pressure riding claim applies only to specified models and configurations, so I wouldn’t assume it is safe for every bike without checking the application details. The listed 90-day warranty is also limited, and the product notes possible paint loss during shipping. Choose it for height flexibility; skip it if you want a conventional shock with clearly specified damping adjustments.
Pros:- Height-adjustable air suspension with a stated 2–3-inch lowering range
- Nickel-plated brass push-to-connect fittings are included
- Manifold-style dump valve supports air release
- Designed for a broad range of Harley Touring model years
Cons:- Zero-pressure riding guidance applies only to specified models and configurations
- The 90-day manufacturer warranty is limited
- Packaging and shipping may cause paint loss
Best for: Harley Touring owners from compatible 1994–2025 applications who want to lower the rear by releasing air and adjust ride height.
Not ideal for: Riders who want published rebound and preload controls, or who cannot confirm their exact model’s zero-pressure and fitment conditions.
- Brand:TCMT
- Fitment:Harley Touring models, 1994–2025
- Adjustment:Height-adjustable
- Lowering range:2–3 inches
- Fittings:Nickel-plated brass push-to-connect
- Valve block:Manifold-style dump valve
- Package contents:One air ride kit
- Manufacturer warranty:90 days
Our verdict“Choose the TCMT kit if lowering and changing ride height matter more to you than conventional damping adjustments.”
TOFR Remote Reservoir Rear Suspension Shocks for Harley Touring (2014–2025)
Among these options, the TOFR remote-reservoir shocks are the clearest fit for a Touring rider who regularly switches between solo trips, passengers, and luggage. Adjustable rebound damping and preload let the rider tune two aspects of rear suspension behavior, while the remote reservoirs are intended to help control the ride and reduce bottoming under heavy loads. That makes them a more load-focused choice than the TCMT air kit, whose main distinction is adjustable height and lowering.
Fitment is the main constraint, not a minor detail: these shocks exclude CVO models and bikes with factory Tour-Pak luggage. The listed application covers several 2014–2025 Touring models, but buyers should confirm their exact configuration before ordering. If your bike is compatible and load changes are routine, the adjustment range is useful; if you want to lower the bike, the TCMT kit is more directly aimed at that goal.
Pros:- Rebound damping and preload are adjustable
- Designed to improve control and help reduce bottoming under heavy loads
- Application includes Road Glide, Street Glide, and Road King models
- Remote-reservoir layout distinguishes it from standard rear shocks
Cons:- Does not fit CVO models
- Does not fit motorcycles equipped with factory Tour-Pak luggage
- Does not offer the stated ride-height lowering range of the TCMT air kit
Best for: Owners of compatible 2014–2025 Harley Touring models who often alternate between solo riding and carrying a passenger or luggage.
Not ideal for: CVO owners and riders whose motorcycles have factory Tour-Pak luggage, since the product is listed as incompatible.
- Brand:TOFR
- Manufacturer:YSN-Moto
- Model:HD-RSS-002-BLARED@#2607
- Position:Rear
- Fitment:Harley Touring models, 2014–2025, including Road Glide, Street Glide, and Road King
- Adjustments:Rebound damping and preload
- Finish:Black shock body with red hard-coated reservoir
- Compatibility exclusions:CVO models and motorcycles with factory Tour-Pak luggage
Our verdict“Pick the TOFR shocks if your compatible Touring bike carries changing loads and you want damping and preload adjustments rather than ride-height control.”
Progressive Suspension 412-4063B Rear Shock, 11.5-Inch, Black Anodized
I’d favor the Progressive Suspension 412-4063B for a street-sport rider who wants a conventional rear shock with a clear, mechanical adjustment rather than an air system or remote reservoir. Its five-position cam-style preload adjuster gives a practical way to account for rider weight or modest changes in load, while the progressive-rate spring is designed to respond differently as suspension compression increases. Nitrogen-charged, multistage velocity-sensitive damping further separates it from the Legends Aero, whose supplied product details do not explain its adjustment or damping features.
The limitation is fit: this is a vehicle-specific shock, and the supplied data does not name compatible motorcycles beyond the street-sport category. Its 11.5-inch extended length also needs to match the intended application. It lacks the TOFR’s listed rebound adjustment and load-focused remote reservoirs, but that simpler setup may suit riders who want preload tuning without those extra controls.
Pros:- Five-position cam-style preload adjustment
- Progressive-rate spring is designed to respond across suspension travel
- Nitrogen-charged, multistage velocity-sensitive damping
- Double-wall steel body with black anodized finish
Cons:- Vehicle-specific fitment limits use across motorcycles
- Supplied product data does not identify exact compatible models
- No rebound adjustment is listed, unlike the TOFR remote-reservoir shocks
Best for: Street-sport motorcycle owners with confirmed fitment who want a conventional rear shock and several preload positions.
Not ideal for: Riders who need broad cross-model compatibility, a stated ride-height lowering range, or independently adjustable rebound damping.
- Brand:Progressive Suspension
- Model number:412-4063B
- Position:Rear
- Extended length:11.5 inches
- Material:Steel
- Spring type:Progressive rate
- Preload adjuster:5-position cam style
- Damping:Nitrogen-charged, multistage velocity-sensitive
- Fit type:Vehicle-specific; compatible vehicle type listed as street-sport motorcycles
Our verdict“Choose this Progressive shock when your street-sport bike is confirmed as compatible and you want straightforward preload tuning.”
Legends Aero Air Suspension for 1999–2019 FLH Touring Models, Black
The Legends Aero Air Suspension earns a place for buyers whose first requirement is an air suspension kit listed specifically for 1999–2019 FLH Touring motorcycles. That fitment window is narrower than the TCMT kit’s stated 1994–2025 Touring range, so it is a more targeted choice rather than the more flexible year-range option. The supplied details identify the system as air suspension and give its black finish and 11.1-pound weight, but they do not describe ride-height range, controls, or damping adjustments.
That missing information makes this the least transparent pick in the group. By comparison, TCMT states a 2–3-inch lowering range and names its fittings and dump valve, while TOFR lists rebound and preload adjustments. I’d only shortlist the Legends Aero after confirming the exact fit and getting further product details from the seller or manufacturer. Its model-specific listing may suit an FLH owner, but the sparse description makes it harder to match to a particular riding goal.
Pros:- Listed specifically for 1999–2019 FLH Touring models
- Air suspension system rather than a conventional fixed shock
- Black finish is specified
- Product weight is provided
Cons:- Supplied description does not state ride-height range or adjustment controls
- Damping characteristics and other system features are unclear
- Fitment year range is narrower than the TCMT Touring kit’s listed range
Best for: Owners of 1999–2019 FLH Touring models who specifically want an air suspension kit and can verify its functions and fitment before purchase.
Not ideal for: Buyers who need published lowering range, adjustment details, or clear installation and compatibility information before choosing.
- Brand:Legends
- System type:Air suspension
- Color:Black
- Compatible models:1999–2019 FLH Touring
- Item weight:11.1 pounds
- Package dimensions:16 x 15.6 x 5.8 inches
- Manufacturer part number:1311-0152
- ASIN:B071HKW8RX
Our verdict“Consider the Legends Aero only if your FLH falls within its listed years and you can confirm the system’s functions before buying.”
Legend Suspension REVO-A Adjustable Rear Motorcycle Shocks, 13 in., Standard, Black
The Legend Suspension REVO-A is the most straightforward choice here for riders seeking an adjustable, vehicle-specific rear shock with a 13-inch extended length. Its aluminum construction differs from the steel-bodied Progressive 412-4063B, which is listed at 11.5 inches and provides a five-position preload adjuster plus specified damping technology. The REVO-A listing confirms adjustability but does not say which settings can be changed, so I would not assume it offers the same type or range of tuning as the Progressive or TOFR shocks.
That gap in the product details is its central drawback: buyers need to verify the exact motorcycle fit and clarify what “adjustable” means for this model. The 13-inch length may suit a bike requiring that dimension, but length alone does not establish compatibility or ride behavior. I’d choose it when the fitment and adjustment details match the bike’s needs; for a more fully described tuning setup, the Progressive or TOFR options provide clearer adjustment information.
Pros:- Adjustable rear shock design
- 13-inch extended length is specified
- Aluminum construction
- Vehicle-specific fitment is stated
Cons:- Exact compatible motorcycles are not identified in the supplied data
- The adjustment type and range are not described
- No damping specification is provided, unlike the Progressive 412-4063B
Best for: Motorcycle owners with confirmed vehicle-specific fitment who need a 13-inch extended rear shock and want an adjustable design.
Not ideal for: Buyers who need a clearly documented adjustment method, a broad universal fit, or a published damping specification.
- Brand:Legend Suspension
- Model:1310-0959
- Product type:Rear motorcycle shocks
- Adjustment:Adjustable
- Extended length:13 inches
- Material:Aluminum
- Finish:Black
- Fitment:Vehicle-specific
- Item weight:8.7 pounds
Our verdict“Choose the REVO-A only when its 13-inch length and confirmed fitment suit your bike and the adjustment details meet your needs.”
Rear Air Suspension Kit for 1994–2023 Harley-Davidson Touring Models
I’d choose this Woosphy kit for a Harley Touring rider who wants to change rear ride height, not just tune damping. Its air-adjustable setup can lower the bike by 2 to 3 inches when the air is released, while the stated range runs from about 9.64 to 14.17 inches. That gives it a different purpose from the Mofun 12-inch shocks, which offer detailed compression and rebound adjustments for riders focused on suspension control. The tradeoff is narrower fitment: this kit is listed for Harley-Davidson Touring models from 1994–2023, so it is not a general-purpose replacement. I’d also verify the exact model and installation requirements before ordering; the included guide helps, but the supplied details do not specify damping adjustments or an air-control method.
Pros:- Air-adjustable design allows changes to rear ride height
- Can lower the bike by 2 to 3 inches with air released
- Includes struts, springs, and an installation guide
Cons:- Fitment is limited to specified Harley-Davidson Touring models from 1994–2023
- Product details do not state compression or rebound adjustment options
- Air-control method and adjustment hardware are not specified
Best for: Harley-Davidson Touring owners who want rear air adjustment and the option to lower the bike for easier reach or a changed stance.
Not ideal for: Riders seeking detailed compression and rebound tuning, or owners of motorcycles outside the specified Harley Touring fitment.
- Fitment:Harley-Davidson Touring models, 1994–2023
- Position:Rear
- Collapsed length:Approximately 9.64 in (24.5 cm)
- Extended length:Approximately 14.17 in (36 cm)
- Maximum lowering:3 in
- Material:Aluminum
- Included components:Installation guide, struts, and springs
- Brand:Woosphy
Our verdict“Choose this kit if adjustable ride height and lowering matter more to you than finely adjustable damping.”
Mofun 12″ Remote Reservoir Rear Shocks for Harley Sportster and Dyna
The Mofun shocks suit riders who want separate, granular control over rear damping on compatible Sportster and Dyna models. They offer 18 compression settings and 33 rebound settings, a broader adjustment approach than the TCMT Touring shocks, which provide 19 compression and 12 rebound settings for a different family of bikes. Progressive springs and a monotube design with remote reservoirs are aimed at riders who want to tailor response as pace or road conditions change. That flexibility also means more setup decisions: riders who want a straightforward replacement may not need dozens of settings. At 12 inches long, fit and ride-height implications should be checked against the exact motorcycle. The included standoffs and preload tool help with installation and adjustment, but the fitment list still needs careful confirmation.
Pros:- Offers 18 compression and 33 rebound settings
- Progressive-rate springs paired with monotube remote-reservoir construction
- Includes aluminum standoffs, washers, and a preload adjustment tool
- 12-inch length is clearly specified for fitment checks
Cons:- Many adjustment settings can add setup work for riders seeking a simple replacement
- Compatibility requires checking the detailed list for the exact motorcycle
- Supplied details do not specify a warranty or ride-height adjustment range
Best for: Sportster and Dyna owners who want extensive compression and rebound adjustment and are prepared to confirm fitment and tune the setup.
Not ideal for: Riders who prefer a simple, minimally adjustable replacement or who own a model outside the listed Sportster and Dyna years.
- Length:12 in (305 mm)
- Compatibility:Harley Dyna 1991–2017; Sportster 1988–2022
- Compression adjustment:18 levels
- Rebound adjustment:33 levels
- Spring type:Progressive rate
- Shock type:Monotube with remote reservoir
- Included items:2 shocks, 8 aluminum standoffs, 4 flat washers, and 1 preload adjustment tool
Our verdict“Pick the Mofun set if your compatible Sportster or Dyna needs broad damping adjustment and you are willing to tune it.”
TCMT Remote Reservoir Rear Suspension Shocks for Harley Touring Models
For riders carrying changing loads on a compatible Harley Touring bike, the TCMT shocks make preload adjustment up to 50 mm a central feature, alongside 19 compression and 12 rebound settings. Compared with the Woosphy air kit, this is a damping-and-preload-focused option rather than a system described as lowering the motorcycle by releasing air. That distinction matters if your priority is adapting suspension response to passengers or luggage rather than changing stance. Fitment is its main constraint: the listed Road Glide, Road King, and Street Glide years vary, and CVO models and bikes with a tour trunk are excluded. The remote reservoirs, stainless steel lines, and rubber bearings add specific construction details, but the supplied data does not state shock length or a spring rate. I’d check model-year fit before treating it as a direct replacement.
Pros:- Provides 19 compression and 12 rebound damping settings
- Up to 50 mm of preload adjustment on both shocks
- Remote reservoirs use a black hard-coat finish and stainless steel lines
- Includes a stated 90-day manufacturer warranty
Cons:- Does not fit CVO models or motorcycles equipped with a tour trunk
- Fitment years differ by model and require careful checking
- Shock length and spring rate are not provided in the supplied specifications
Best for: Owners of listed Road Glide, Road King, or Street Glide models who want adjustable preload and damping for different loads.
Not ideal for: CVO owners, riders with a tour trunk, or anyone who needs fitment beyond the specified models and years.
- Product type:Remote-reservoir rear suspension shocks
- Compression damping:19 levels
- Rebound damping:12 levels
- Preload adjustment:Up to 50 mm on both shocks
- Shock absorber diameter:14 mm
- Fitment:Road Glide 2014–2026; Road King 2014–2025; Street Glide 2014–2026
- Exclusions:CVO models and models equipped with a tour trunk
- Finish and lines:Black hard-coat reservoir with stainless steel lines
- Warranty:90 days
Our verdict“Choose the TCMT shocks if your listed Touring model fits and load-sensitive preload adjustment is a priority.”
Universal 190 mm Adjustable Motorcycle Shock Absorber
This Bediffer shock is the lineup’s small-vehicle option: it is intended for scooters, mopeds, electric vehicles, and mini motorcycles with a 190 mm hole-center distance. Its spring-pressure adjustment knob gives buyers a basic way to alter spring setting, but it does not offer the separate compression and rebound controls found on the Mofun or TCMT remote-reservoir shocks. That makes it a simpler fit for compact applications, not a comparable choice for Harley touring suspension. The stated 1,200 lb maximum load is a product specification, not proof that the unit fits any vehicle carrying that load; mounting dimensions and vehicle requirements still need to match. Its aluminum-alloy body and electroplated stainless-steel spring suit buyers seeking a single replacement shock, while universal labeling leaves more compatibility work to the owner.
Pros:- Spring-pressure adjustment knob allows basic tuning
- 190 mm hole-center measurement provides a specific fitment check
- Aluminum-alloy body and electroplated stainless-steel spring
- Designed for several compact vehicle types
Cons:- Universal fitment does not guarantee compatibility with a particular vehicle
- Only one shock is included per pack
- Does not list separate compression or rebound adjustment
Best for: Scooter, moped, electric-vehicle, and mini-motorcycle owners whose mounting points match the 190 mm hole-center measurement.
Not ideal for: Harley owners or buyers who need a matched pair, vehicle-specific fitment, or independently adjustable compression and rebound damping.
- Brand:Bediffer
- Fit:Universal; intended for scooters, mopeds, electric vehicles, and mini motorcycles
- Hole-center distance:190 mm (7.48 in)
- Maximum load:1,200 lb
- Materials:Aluminum alloy and electroplated stainless steel
- Position:Center
- Items per pack:1
Our verdict“Buy this single shock for a compact vehicle only after confirming its 190 mm mounting distance and other fit requirements.”
Rear Air Ride Suspension Set for Select Harley-Davidson Touring Models, 1994–2023
The GELUOXI set stands out for its stated coverage across several Harley-Davidson Touring families, including Road Glide, Road King, Street Glide, Electra Glide, Tour Glide, Ultra Limited, and select CVO models. That makes it a broader model-family choice than the Woosphy kit, whose description lists Harley Touring models but does not name the same range of variants. However, the GELUOXI fitment still depends on the exact model and year, so the broad list is not a substitute for checking compatibility. The product is identified as an air ride suspension set, but the supplied specifications do not give adjustment settings, ride-height range, or included components. Buyers wanting clearly stated lowering dimensions may find the Woosphy kit easier to evaluate; those prioritizing listed model coverage may prefer this one.
Pros:- Lists compatibility across several Harley-Davidson Touring model families
- Model-year coverage extends from 1994–2023, depending on motorcycle
- Includes select CVO models in the stated compatible-model range
Cons:- Compatibility varies by model and year and requires exact verification
- Supplied product data does not state ride-height range or adjustment settings
- Included components are not itemized in the supplied specifications
Best for: Harley Touring owners whose specific model and year appear in the GELUOXI fitment details, including eligible CVO variants.
Not ideal for: Buyers who need published ride-height measurements, damping settings, or a clearly itemized component list before choosing a suspension kit.
- Brand:GELUOXI
- Product type:Rear air ride suspension set
- Compatible models:Select Touring, CVO, Electra Glide, Road Glide, Road King, Street Glide, Tour Glide, and Ultra Limited models
- Model years:1994–2023, depending on model
- Item weight:17.11 lb
- Product dimensions:17.3 × 15.6 × 6.1 in
Our verdict“Consider this air ride set if your exact Harley Touring model is listed and broad model-family coverage matters more than published adjustment details.”
Progressive Suspension 412-4037C Chrome 11-Inch Rear Shock
I’d rank this as a straightforward choice for cruiser riders who want load adjustment without an air system. Its five-position cam adjuster lets riders set spring preload for changing passenger or cargo weight, while the progressive-rate spring is intended to respond differently as suspension travel increases. Nitrogen-charged, multistage damping and a double-wall steel body add a more defined setup than a basic universal shock, but the vehicle-specific fit means compatibility needs checking before purchase.
Compared with the Progressive Suspension 412-4063B, this model has a chrome finish and an 11-inch extended length rather than that option’s 11.5-inch length and black finish. It is a better match when the listed length and appearance suit the bike, not a general upgrade for every cruiser. Its 10.4-pound weight and limited fit range are meaningful drawbacks.
Pros:- Five-position cam adjuster allows preload changes for different loads.
- Progressive-rate spring is designed to respond across changing suspension travel.
- Nitrogen-charged, multistage damping is intended to support consistent damping.
- Chrome finish suits riders matching bright-finish cruiser components.
Cons:- Vehicle-specific fit limits use on motorcycles outside its confirmed applications.
- At 10.4 pounds, it may add more weight than some riders want.
- The fixed 11-inch extended length may not suit every desired ride height or setup.
Best for: Street-cruiser owners who need a replacement rear shock with manual preload adjustment for occasional changes in passenger or cargo load.
Not ideal for: Riders whose motorcycle is not confirmed as compatible, or anyone seeking an air-adjustable setup, a lighter shock, or a different ride height.
- Brand:Progressive Suspension
- Model number:412-4037C
- Position:Rear
- Extended length:11 inches
- Weight:10.4 pounds
- Material:Alloy steel
- Spring:Progressive rate
- Preload adjuster:5-position cam style
- Compatible vehicle type:Street cruiser motorcycles; vehicle-specific fit
Our verdict“Choose this shock if your street cruiser matches its fitment and you want manual preload adjustment with a chrome finish, but skip it if you need broad compatibility or air adjustment.”
How We Picked
I ranked these systems around the factors that most affect a suspension purchase: motorcycle fitment, suspension type, adjustability, build and finish details, and likely setup demands. A system with a clearly stated application and a useful distinction—such as air adjustment, a remote reservoir, or an adjustable conventional shock—ranks ahead of a less clearly differentiated option. I also considered whether the product information gives a buyer enough to check compatibility and understand what kind of change to expect.
The REVO-A takes the top spot as the most balanced adjustable coil-shock option in this group. Touring air systems rank highly for riders who specifically want air-based adjustment, while the Progressive 412 models offer a more conventional path with fewer apparent setup variables. The universal 190 mm shock ranks lower because universal fit claims call for careful verification, and the overlapping air-kit listings are separated by how clearly their stated fitment and system type match a buyer’s needs. I do not treat a reservoir, finish, or model-year range alone as proof of superior ride performance.
Factors to Consider When Choosing Best Motorcycle Suspension Systems
Choosing suspension is less about picking the most feature-heavy listing and more about matching the system to your motorcycle, load, roads, and willingness to tune it. These broader checks can prevent a costly mismatch and help set realistic expectations before you compare individual models.
Confirm Exact Fitment Before Comparing Features
Start with the motorcycle’s exact model, year, trim, and any changes to its frame or mounting hardware. Broad labels such as “Harley Touring” can cover multiple applications, while this lineup includes distinct Touring ranges and separate Sportster and Dyna fitments. Check mounting dimensions, shock length, clearance, and whether the listing includes the hardware your bike needs. A stated year range is a starting point, not a guarantee that every model in that range uses the same setup. Avoid choosing by appearance or product name before checking the manufacturer’s fitment notes against your motorcycle’s manual or a qualified parts source.
Choose Air or Coil Based on How You Ride
Air suspension makes sense when the ability to adjust air pressure or ride height is a priority, particularly for riders whose load changes between solo trips and two-up touring. Coil shocks offer a more conventional setup and can be a better match for riders who want to avoid air lines, fittings, or pressure checks. Neither design is automatically more comfortable; spring rates, damping, setup, and fit matter too. Consider how often you will actually change settings rather than paying attention only to the adjustment feature. A simpler system may suit steady loads, while frequent changes in passenger or luggage weight can make adjustability more useful.
Match Shock Length to Geometry and Clearance
Shock length affects more than seat height: it can change suspension travel, cornering clearance, handling geometry, and how the bike behaves over bumps. Do not assume that a shorter shock is a direct comfort upgrade or that a longer one will fit without clearance issues. Compare the proposed length with the stock measurement and check the effect on your specific model. Lowering the rear can limit available travel, so a bike may feel harsher even when it sits lower. If your priority is changing ride height, ask whether the system is designed for that purpose and what compromises follow.
Treat Reservoirs and Adjusters as Setup Tools
A remote reservoir is a design feature, not a guarantee of better suspension for every rider. Its value depends on the shock’s tuning options, intended use, and whether you can set those options to suit your weight and roads. Before choosing a reservoir model, find out what adjustments are actually available and whether the product provides clear setup guidance. More adjusters can help a rider fine-tune a setup, but they also add decisions and may require a methodical approach. If you would rather install a system and leave it alone, a simpler shock may be easier to live with.
Account for Rider, Passenger, and Luggage Weight
Suspension should be selected and set up for the load the motorcycle usually carries, not just the rider’s weight in isolation. Regular two-up riding or heavy luggage can change sag and reduce the suspension’s available travel if the setup is not suited to that load. Check the manufacturer’s stated load guidance and adjustment range before buying, especially when comparing air kits with fixed-rate or adjustable coil shocks. A system that works for solo commuting may not feel appropriate on a fully loaded touring trip. Avoid compensating for an unsuitable spring or shock by making extreme adjustments beyond the maker’s guidance.
Budget for Installation and Follow-Up Setup
Suspension work involves more than attaching parts: access, lifting the motorcycle safely, torque specifications, hose routing on air systems, and post-installation checks all affect the result. A product that appears simple may still need tools or experience that a new owner does not have. Confirm whether the kit includes required fittings and instructions, and plan for a qualified mechanic if you are unsure about the work. After installation, check sag and ride behavior with your normal load rather than judging the setup while the bike is unloaded. Paying for clear fitment and support can be a better choice than selecting a feature-rich part with uncertain compatibility.
Frequently Asked Questions
Can I use a Touring air suspension kit on any Harley Touring model?
No. The listed kits cover different year ranges, and a broad Touring label does not prove that every trim or model uses matching mounts and clearances. Check the exact model and year against the product’s fitment chart, then confirm whether it requires particular brackets, lines, or other hardware. If the manufacturer’s compatibility details do not name your motorcycle, ask a qualified parts specialist before ordering. Matching the stated application matters more than choosing the kit with the most appealing name.
Should I choose an air kit or a conventional coil shock for two-up riding?
Base the choice on how often the bike carries a passenger or luggage and how much adjustment you want between loads. An air system may be appealing if you expect to change settings as the load changes, while a coil shock can work well when your usual load is consistent and the spring setup suits it. Check each system’s load guidance and adjustment instructions rather than assuming air automatically handles two-up use better. Correct fitment and setup still determine how the motorcycle behaves. If your load varies often, prioritize a system with clear, usable adjustment guidance.
Is a remote-reservoir shock a better choice than a shock without one?
Not by itself. A reservoir can be part of a more adjustable or differently designed shock, but the feature alone does not tell you whether the damping suits your riding or motorcycle. Compare the actual adjustment functions, fitment, shock length, and setup information before treating the reservoir as an advantage. Riders who want a straightforward replacement may be better served by a conventional shock with a clear application. Choose a remote-reservoir model when its specific design and adjustments address a need you have, not simply because it looks more advanced.
How do I know whether an 11-inch or 11.5-inch rear shock will fit my bike?
Check the stock shock length and the exact fitment information for your motorcycle before selecting either size. The listed Progressive 412 options differ in length as well as finish, so appearance is not the only distinction. A change in length can affect seat height, suspension travel, clearance, and handling geometry. Confirm the manufacturer’s measurement method and any model-specific notes, since listings may not describe length in the same way. If you are unsure, have a mechanic or suspension specialist verify the measurement and expected effect before purchase.
Can a universal 190 mm shock replace a model-specific motorcycle shock?
Only if its dimensions and mounting details match the motorcycle and the shock is suitable for the bike’s load and suspension geometry. “Universal” does not remove the need to check eye-to-eye length, mount type, width, clearance, spring characteristics, and intended application. A 190 mm measurement alone cannot confirm a safe fit. Compare the specifications with the original component and seek expert confirmation when any detail is unclear. For many buyers, a model-specific shock is the lower-uncertainty choice.
Conclusion
For the broadest mix of adjustability and conventional shock design, my best overall pick is the Legend Suspension REVO-A. Touring riders who want air-based adjustment should compare the Legends Aero with the listed TCMT and other Touring air kits, paying close attention to exact year and model fitment; it is my best premium-oriented option for that use case, provided its application matches. For a more direct conventional replacement, the Progressive Suspension 412 is my best value-style choice among the clearly defined coil-shock options, while new suspension buyers may find its simpler format easier to understand than a multi-adjustment remote-reservoir setup. The Mofun remote-reservoir shocks are the specific pick to investigate for compatible Sportster and Dyna motorcycles, and the universal 190 mm shock is best left to buyers who can verify every dimension. Whichever route you choose, confirm fitment and intended load before ordering; those checks matter more than a feature label.
