Dirt Bike Rear Suspension
Dirt Bike Rear Suspension Parts: Lowering Rods, Swingarm Bearings & Shock Springs at JJ Motorsports
Upgrade your dirt bike's rear suspension with premium parts from JJ Motorsports, designed for better damping and durability in motocross, enduro, and trail riding. These components improve handling and reduce wear for reliable performance.
Shop Moose Offroad, Moose Racing, and Factory Connection rear suspension parts for durable, easy-to-install upgrades. Explore related categories such as dirt bike suspension for front forks and shocks, or dirt bike frame and body for guards and panels to complete your build and achieve balanced, responsive ride quality across all conditions, from high-speed jumps to technical singletrack.
Top Dirt Bike Rear Suspension Parts
- Moose Offroad Lowering Pull Rod 0419-0022 – Adjustable aluminum rod for lowering rear suspension; fits Honda CRF and Yamaha YZ for improved ergonomics.
- Moose Racing Swingarm Bearing Kit 28-1231 – Complete sealed bearing kit for swingarms; smooth rotation on Kawasaki KX models.
- Factory Connection Shock Spring ANB-0034 – Progressive rear shock spring for Factory Connection shocks; tunes damping for KTM SX.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
RACE TECH Shock Shaft Bushing - 16 mm ID x 15 mm L SMSB 1615
RACE TECH
$9.99Shock shaft bushings are critical wear items that directly impact your suspension's responsiveness and consistency across multiple heat cycles. The RACE TECH SMSB 1615 combines cost-effective replacement economics with performance-grade materials, making...SMSB1615- SKU:
- SMSB1615
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TYPE:
- SHOCK SHAFT
- INSIDE DIAMETER IMPERIAL:
- 0.63'
- LENGTH IMPERIAL:
- 0.59'
- LENGTH METRIC:
- 15.00 MM
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$9.99 -
RACE TECH Gold Valve Shock Kit - 50 mm SMGV 5045
RACE TECH
$199.99Stock shock valving limits your suspension's potential across varying terrain and riding conditions. The RACE TECH Gold Valve Shock Kit delivers precise control and tunability that transforms how your bike handles—from technical trail sections to...13140279- SKU:
- 13140279
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 50.00 MM
- TYPE:
- SHOCK
- MODEL:
- GOLD VALVE
$199.99 -
RACE TECH High-Volume Shock Reservoir Cap - 52 mm - KYB SMRC 52001
RACE TECH
$79.99Shock fade is the silent performance killer on the track—as your dampers heat up, nitrogen pressure drops and your suspension loses responsiveness when you need it most. The RACE TECH High-Volume Shock Reservoir Cap solves this by increasing nitrogen...13140244- SKU:
- 13140244
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLUE
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK RESERVOIR
- INSIDE DIAMETER METRIC:
- 52.00 MM
- PRODUCT NAME:
- CAP
$79.99 -
RACE TECH High-Volume Shock Reservoir Cap - 54 mm - KYB SMRC 54001
RACE TECH
$64.99Shock fade under sustained track use ruins lap times and compromises safety. This billet aluminum reservoir cap increases nitrogen volume capacity, allowing your KYB shocks to maintain consistent damping through extended sessions without pressure loss...13140251- SKU:
- 13140251
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 54.00 MM
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- ATV
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- CAP
- TYPE:
- SHOCK RESERVOIR
$64.99Qty in Cart: 0Quantity:Price:$64.99Subtotal: -
RACE TECH High-Volume Shock Reservoir Cap - 64 mm - KYB SMRC 64001
RACE TECH
$79.99Shock fade under sustained racing conditions is a performance killer—and this RACE TECH reservoir cap eliminates it. By increasing nitrogen volume capacity, you'll maintain consistent damping rates lap after lap, even during extended track sessions. The...13140253- SKU:
- 13140253
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- CAP
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 64.00 MM
- MOUNTING POSITION:
- REAR
- TYPE:
- SHOCK RESERVOIR
$79.99 -
RACE TECH High-Volume Shock Reservoir Cap - 40 mm - KYB SMRC 40002
RACE TECH
$44.99Shock fade is the enemy of consistent lap times, and nitrogen loss compounds the problem race after race. The RACE TECH High-Volume Reservoir Cap solves this by increasing your nitrogen charge capacity, keeping damping performance stable through extended...13140254- SKU:
- 13140254
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- CAP
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK RESERVOIR
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- UTV
- INSIDE DIAMETER METRIC:
- 40.00 MM
- MOUNTING POSITION:
- FRONT
$44.99Qty in Cart: 0Quantity:Price:$44.99Subtotal: -
RACE TECH High-Volume Shock Reservoir Cap - 40.5 mm - KYB SMRC 40501
RACE TECH
$69.99Shock fade during sustained racing isn't just uncomfortable—it's a performance killer that costs you lap time and consistency. The RACE TECH High-Volume Shock Reservoir Cap increases nitrogen volume in your KYB dampers, maintaining stable damping rates...13140255- SKU:
- 13140255
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- CAP
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK RESERVOIR
- INSIDE DIAMETER METRIC:
- 40.50 MM
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$69.99 -
RACE TECH Bladder Cap Kit - KTM WP Shock SWBL 02
RACE TECH
$79.99If you're running a KTM WP shock and pushing hard on technical terrain, you're fighting against internal friction and heat-induced performance fade that costs you lap time. The RACE TECH Bladder Cap Kit replaces the mechanical piston with a...13140015- SKU:
- 13140015
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK BLADDER
- UNITS:
- KIT
- MODEL:
- FITS KTM WP SHOCK MODELS 2003 - 2004
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- CAP
$79.99Qty in Cart: 0Quantity:Price:$79.99Subtotal: -
RACE TECH Shock Reservoir/Bladder Conversion Kit SWBL 03
RACE TECH
$89.99Traditional piston-style shock reservoirs struggle with heat dissipation during sustained track sessions, leading to performance degradation and shortened component lifespan. The RACE TECH Shock Reservoir/Bladder Conversion Kit SWBL 03 replaces that...13140001- SKU:
- 13140001
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- INSIDE DIAMETER IMPERIAL:
- 2.05'
- TYPE:
- SHOCK BLADDER
- LENGTH IMPERIAL:
- 3.74'
- LENGTH METRIC:
- 95.00 MM
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COLOR/FINISH:
- BRASS
- PRODUCT NAME:
- CONVERSION KIT
$89.99 -
RACE TECH Gold Valve Shock Kit - 33 mm SMGV 3301
RACE TECH
$199.99Suspension performance separates competitive riders from the rest of the field, and generic shock valving won't cut it when precision matters. The RACE TECH Gold Valve Shock Kit gives you full control over your suspension character—whether you're dialing...13140002- SKU:
- 13140002
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MODEL:
- GOLD VALVE
- OUTSIDE DIAMETER METRIC:
- 33.00 MM
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK
- COLOR/FINISH:
- GOLD
- UNITS:
- KIT
$199.99Qty in Cart: 0Quantity:Price:$199.99Subtotal: -
RACE TECH Gold Valve Shock Kit - 36 mm SMGV 3610
RACE TECH
$199.99Suspension performance separates competitive riders from the rest of the field, and your shock valving is where that performance lives. The RACE TECH Gold Valve Shock Kit delivers the precision tuning you need to dial in control, traction, and bottoming...13140003- SKU:
- 13140003
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MODEL:
- GOLD VALVE
- OUTSIDE DIAMETER METRIC:
- 36.00 MM
- UNITS:
- KIT
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK
$199.99Qty in Cart: 0Quantity:Price:$199.99Subtotal: -
RACE TECH Bladder Cap Kit - KTM SWBL 6001
RACE TECH
$174.99If you're running high-speed courses or tackling square-bump terrain, your stock damper cap is costing you performance and reliability. The RACE TECH Bladder Cap Kit replaces mechanical piston complexity with a nitrogen-filled bladder design that...13140674- SKU:
- 13140674
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- CAP
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK BLADDER
- UNITS:
- KIT
- MODEL:
- STANDARD
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
$174.99 -
RACE TECH Gold Valve Shock Kit - 40 mm SMGV 4005
RACE TECH
$199.99Suspension performance directly impacts your ability to control the bike through technical terrain and maintain traction under load. The RACE TECH Gold Valve Shock Kit upgrades your stock valving with precision-engineered shimming that delivers...13140296- SKU:
- 13140296
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- GOLD
- OUTSIDE DIAMETER METRIC:
- 40.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK
- MODEL:
- GOLD VALVE
$199.99 -
RACE TECH Gold Valve Shock Kit - 40 mm SMGVS 4005
RACE TECH
$199.99Suspension performance separates competitive riders from the rest—and the RACE TECH Gold Valve Shock Kit delivers measurable improvements in control, traction, and responsiveness across varied terrain. Whether you're dialing in trail setups or pushing...13140297- SKU:
- 13140297
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- GOLD
- OUTSIDE DIAMETER METRIC:
- 40.00 MM
- PRODUCT NAME:
- VALVE KIT
- UNITS:
- KIT
- MODEL:
- GOLD VALVE
- RIDING STYLE:
- STREET
- TYPE:
- SHOCK
$199.99 -
RACE TECH Gold Valve Shock Kit - 46 mm SMGV 4633
RACE TECH
$199.99If you're running stock suspension valving, you're leaving performance on the track. The RACE TECH Gold Valve Shock Kit transforms how your suspension responds to terrain—delivering the control and traction you need whether you're dialing in trail...13140298- SKU:
- 13140298
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MODEL:
- GOLD VALVE
- TYPE:
- SHOCK
- OUTSIDE DIAMETER METRIC:
- 46.00 MM
$199.99 -
RACE TECH Front/Rear Spring - Blue - Race Series - Spring Rate 300 lbs/in SRSP 652654
RACE TECH
$149.99Precision suspension tuning demands springs engineered to exact specifications, and the RACE TECH 300 lbs/in delivers the consistency and reliability that separate podium finishes from DNFs. Whether you're dialing in front-end geometry or fine-tuning...13120289- SKU:
- 13120289
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
- COLOR/FINISH:
- BLUE
- LINEAR SPRING RATE IMPERIAL:
- 300.00 LB/IN
- MODEL:
- RACE SERIES®
- PRODUCT NAME:
- SHOCK SPRING
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 10.125'
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SHOT PEENED
- LINEAR SPRING RATE METRIC:
- 5.40 KG/MM
- RIDING STYLE:
- OFF-ROAD
$149.99 -
RACE TECH Front/Rear Spring - Blue - Race Series - Spring Rate 319.19 lbs/in SRSP 652657
RACE TECH
$149.99Precision suspension tuning demands springs engineered to exacting tolerances, and the RACE TECH Front/Rear Spring delivers exactly that. With a 319.19 lbs/in spring rate and chrome silicon construction, this spring provides the stiffness-to-mass ratio...13120290- SKU:
- 13120290
- Availability:
- Ships Same Business Day
- Weight:
- 4.14 LBS
- COLOR/FINISH:
- SHOT PEENED
- LINEAR SPRING RATE METRIC:
- 5.70 KG/MM
- MODEL:
- RACE SERIES®
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- LENGTH IMPERIAL:
- 10.125'
- LINEAR SPRING RATE IMPERIAL:
- 319.19 LB/IN
$149.99 -
RACE TECH Front/Rear Spring - Blue - Race Series - Spring Rate 336 lbs/in SRSP 652660
RACE TECH
$149.99Achieving consistent lap times and predictable suspension geometry requires springs engineered to exact specifications—and manufacturing tolerances matter when you're chasing tenths. The RACE TECH Front/Rear Spring delivers repeatability within 0.05...13120291- SKU:
- 13120291
- Availability:
- Ships Same Business Day
- Weight:
- 4.41 LBS
- COLOR/FINISH:
- SHOT PEENED
- LINEAR SPRING RATE IMPERIAL:
- 336.00 LB/IN
- LENGTH IMPERIAL:
- 10.125'
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- LINEAR SPRING RATE METRIC:
- 6.00 KG/MM
- MODEL:
- RACE SERIES®
- MOUNTING POSITION:
- REAR
$149.99 -
RACE TECH Shock Shaft Bushing - 10 mm ID x 10 mm L SMSB 1010
RACE TECH
$9.99When your shock absorber seal head assembly begins to wear, replacing the entire unit isn't your only option—and it shouldn't be. The RACE TECH Shock Shaft Bushing lets you rebuild the critical bushing component for a fraction of new shock costs,...13140159- SKU:
- 13140159
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.39'
- LENGTH IMPERIAL:
- 0.39'
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- BUSHING
- TYPE:
- SHOCK SHAFT
- UNITS:
- EACH
- LENGTH METRIC:
- 10.00 MM
- RIDING STYLE:
- OFF-ROAD
$9.99 -
RACE TECH Gold Valve Shock Kit - 46 mm SMGV 4603
RACE TECH
$199.99Suspension performance separates winners from the rest of the field, and the RACE TECH Gold Valve Shock Kit delivers the precise control and tunability that competitive riders demand. Whether you're dialing in trail manners or chasing podiums at the...13140206- SKU:
- 13140206
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- OUTSIDE DIAMETER METRIC:
- 46.00 MM
- COLOR/FINISH:
- GOLD
- MODEL:
- GOLD VALVE
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK
- UNITS:
- KIT
$199.99
