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
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FACTORY CONNECTION Shock Spring - Spring Rate 341 lbs/in AAL-0061
FACTORY CONNECTION
$159.95If you're running a setup that demands precision tuning and consistent performance lap after lap, your shock springs need to match that standard. The FACTORY CONNECTION Shock Spring (341 lbs/in) delivers repeatable, fade-free performance through...AAL0061- SKU:
- AAL0061
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- RIDING STYLE:
- OFF-ROAD
- LINEAR SPRING RATE IMPERIAL:
- 341.00 LB/IN
- COLOR/FINISH:
- SHOT PEENED
- MOUNTING POSITION:
- REAR
- SPRING TYPE:
- SINGLE LINEAR RATE
- UNITS:
- EACH
- PRODUCT NAME:
- SHOCK SPRING
$159.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 258 lbs/in ALA-0046
FACTORY CONNECTION
$159.95Suspension geometry demands precision, and a compromised shock spring creates unpredictable handling and accelerated component wear. The FACTORY CONNECTION Shock Spring (ALA-0046) delivers consistent 258 lbs/in spring rate through rigorous CNC...13120388- SKU:
- 13120388
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- COLOR/FINISH:
- SHOT PEENED
- RIDING STYLE:
- OFF-ROAD
- SPRING TYPE:
- SINGLE LINEAR RATE
- LINEAR SPRING RATE IMPERIAL:
- 258 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
$159.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 290 lbs/in ALA-0052
FACTORY CONNECTION
$159.95Suspension performance hinges on spring consistency—a poorly made spring loses rate quickly, compromising handling and feedback lap after lap. The FACTORY CONNECTION Shock Spring delivers the precise 290 lbs/in rate you spec'd, maintained through...13120390- SKU:
- 13120390
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- LINEAR SPRING RATE IMPERIAL:
- 290.00 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SHOT PEENED
- SPRING TYPE:
- SINGLE LINEAR RATE
- UNITS:
- EACH
$159.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 308 lbs/in ALA-0055
FACTORY CONNECTION
$159.95A properly tuned suspension begins with the right spring rate, and the FACTORY CONNECTION Shock Spring delivers the precision engineering required for consistent performance across varied track conditions. Whether you're fine-tuning your setup for grip,...13120391- SKU:
- 13120391
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- LINEAR SPRING RATE IMPERIAL:
- 308.00 LB/IN
- SPRING TYPE:
- SINGLE LINEAR RATE
- COLOR/FINISH:
- SHOT PEENED
- MOUNTING POSITION:
- REAR
$159.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 358 lbs/in ALA-0064
FACTORY CONNECTION
$159.95Suspension geometry demands precise spring rates to maintain consistent handling through compression cycles and extreme track conditions. A properly matched shock spring transfers power to the pavement while minimizing unwanted deflection—this FACTORY...13120394- SKU:
- 13120394
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
- COLOR/FINISH:
- SHOT PEENED
- LINEAR SPRING RATE IMPERIAL:
- 358.00 LB/IN
- RIDING STYLE:
- OFF-ROAD
- SPRING TYPE:
- SINGLE LINEAR RATE
$159.95 -
On Sale
FACTORY CONNECTION Progressive Shock Spring - Spring Rate 408.79 lbs/in - 442.38 lbs/in FCU-7379
FACTORY CONNECTION
MSRP: $194.99Now: $125.00Was: $194.99Progressive spring rates deliver a dual-purpose advantage: you get the compliance of a softer spring over small bumps without sacrificing support under heavy compression or aggressive inputs. This FCU-7379 eliminates the traditional trade-off between...13120741- SKU:
- 13120741
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
- COLOR/FINISH:
- SHOT PEENED
- UNITS:
- EACH
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- SHOCK SPRING
- PROGRESSIVE SPRING RATE IMPERIAL:
- 408.79 LB/IN - 442.38 LB/IN
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- SPRING TYPE:
- SINGLE PROGRESSIVE RATE
MSRP: $194.99Now: $125.00Was: $194.99Qty in Cart: 0Quantity:Price:MSRP: $194.99Now: $125.00Was: $194.99Subtotal: -
FACTORY CONNECTION Progressive Shock Spring - Spring Rate 425.59 lbs/in - 459.18 lbs/in FCU-7682
FACTORY CONNECTION
$204.95Progressive shock springs deliver a refined suspension feel that handles both small bumps and large impacts without compromising ride quality or bottoming out. The FACTORY CONNECTION FCU-7682 combines precision engineering with proven durability, making...13120742- SKU:
- 13120742
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- COLOR/FINISH:
- SHOT PEENED
- PROGRESSIVE SPRING RATE IMPERIAL:
- 425.59 LB/IN - 459.18 LB/IN
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- SPRING TYPE:
- SINGLE PROGRESSIVE RATE
- UNITS:
- EACH
$204.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 286 lbs/in ALL-0051
FACTORY CONNECTION
$159.95Shock springs are the foundation of suspension performance—a worn or inadequate spring rate will undermine even the best damper tuning and compromise your handling characteristics. The FACTORY CONNECTION Shock Spring with 286 lbs/in rate delivers the...13120712- SKU:
- 13120712
- Availability:
- Ships Same Business Day
- Weight:
- 3.45 LBS
- COLOR/FINISH:
- SHOT PEENED
- LINEAR SPRING RATE IMPERIAL:
- 286.00 LB/IN
- RIDING STYLE:
- OFF-ROAD
- SPRING TYPE:
- SINGLE LINEAR RATE
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
$159.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 295 lbs/in ALL-0053
FACTORY CONNECTION
$159.95A shock spring is only as good as its consistency under load, and that's where precision manufacturing separates the dependable from the disposable. The FACTORY CONNECTION Shock Spring (295 lbs/in) is cold-wound on CNC equipment and heat-tempered to...13120713- SKU:
- 13120713
- Availability:
- Ships Same Business Day
- Weight:
- 3.45 LBS
- PRODUCT NAME:
- SHOCK SPRING
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- SPRING TYPE:
- SINGLE LINEAR RATE
- COLOR/FINISH:
- SHOT PEENED
- LINEAR SPRING RATE IMPERIAL:
- 295.00 LB/IN
- RIDING STYLE:
- OFF-ROAD
$159.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 195 lbs/in NNR-0035
FACTORY CONNECTION
$149.99Suspension tuning demands precision, and a shock spring with inconsistent rate or premature failure will compromise your setup across the entire platform. The FACTORY CONNECTION Shock Spring (195 lbs/in) delivers the repeatability and durability required...13120032- SKU:
- 13120032
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- LINEAR SPRING RATE IMPERIAL:
- 195.00 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- SPRING TYPE:
- SINGLE LINEAR RATE
- COLOR/FINISH:
- SHOT PEENED
- UNITS:
- EACH
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
On Sale
FACTORY CONNECTION 4CS Fork Compression Piston CAPISTONSET-4CS
FACTORY CONNECTION
MSRP: $229.95Now: $147.00Was: $229.95Suspension tuning separates competitive racers from the rest of the field, and fork compression pistons are where precision matters most. The FACTORY CONNECTION 4CS Fork Compression Piston Capset delivers the small-bump compliance and mid-stroke control...13140583- SKU:
- 13140583
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHOCK COMPRESSION PISTON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
MSRP: $229.95Now: $147.00Was: $229.95 -
FACTORY CONNECTION Bladder Cap - 50 mm - Showa BCS50BRN
FACTORY CONNECTION
$79.95Shock fade during extended track sessions or aggressive trail riding compromises both performance and safety—the FACTORY CONNECTION Bladder Cap addresses this directly by increasing reservoir volume to maintain consistent damping temperatures. This 50 mm...13140271- SKU:
- 13140271
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- OUTSIDE DIAMETER IMPERIAL:
- 1.97'
- TYPE:
- SHOCK BLADDER
- UNITS:
- EACH
- COLOR/FINISH:
- BROWN
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- CAP
- RIDING STYLE:
- OFF-ROAD
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
On Sale
FACTORY CONNECTION Bladder Cap - 59 mm - Showa BCS59BRN
FACTORY CONNECTION
MSRP: $74.95Now: $48.00Was: $74.95Shock fade during extended track sessions or aggressive trail riding degrades handling and reduces your ability to push your vehicle to its limits. The FACTORY CONNECTION Bladder Cap increases reservoir volume to maintain consistent damping performance...13140273- SKU:
- 13140273
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- OUTSIDE DIAMETER IMPERIAL:
- 2.32'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK BLADDER
- UNITS:
- EACH
- COLOR/FINISH:
- BROWN
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- CAP
MSRP: $74.95Now: $48.00Was: $74.95 -
FACTORY CONNECTION WP/KTM Rebound Adjuster Housing REBADJHOUSWP
FACTORY CONNECTION
$25.95Factory Connection's WP/KTM Rebound Adjuster Housing addresses a common wear point on high-performance suspension systems: corrosion of the rebound adjuster mechanism. By sealing the clevis hole with an O-ring design, this housing protects your adjuster...13140035- SKU:
- 13140035
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- ADJUSTER HOUSING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK REBOUND
- UNITS:
- EACH
$25.95 -
FACTORY CONNECTION Shock Seal FCS-18U
FACTORY CONNECTION
$31.00Stock shock seals degrade under extreme temperatures and repeated compression cycles, compromising your suspension's ability to maintain consistent damping performance. The FACTORY CONNECTION FCS-18U upgrades your seals with a more compliant rubber...13140036- SKU:
- 13140036
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MATERIAL:
- RUBBER
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK SHAFT
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
$31.00 -
FACTORY CONNECTION Heavy-Duty Rubber Shock Bumpers - 18 mm SB18
FACTORY CONNECTION
$27.95Harsh bottoming events accelerate suspension wear and create unpredictable handling characteristics that compromise lap times and driver confidence. Factory Connection's Heavy-Duty Rubber Shock Bumpers absorb impact energy at the end-stroke, extending...13140014- SKU:
- 13140014
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER IMPERIAL:
- 0.55'
- MOUNTING POSITION:
- REAR
- TYPE:
- SHOCK
- PRODUCT NAME:
- BUMPER
- UNITS:
- EACH
$27.95 -
FACTORY CONNECTION Shock Seal FCS-14U
FACTORY CONNECTION
$31.00Stock shock seals degrade under thermal cycling and constant compression, leading to fluid weeping, reduced damping performance, and costly seal replacements. The FACTORY CONNECTION FCS-14U upgrade uses a high-compliance rubber compound engineered to...13140208- SKU:
- 13140208
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- SEAL
- TYPE:
- SHOCK SHAFT
- UNITS:
- EACH
- MATERIAL:
- RUBBER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
$31.00 -
On Sale
RACE TECH Shock Oil Seal - 14 mm x 30 mm - KYB SKOS 14
RACE TECH
MSRP: $9.99Now: $8.99Was: $9.99Worn shock seals lead to oil leakage, compromised damping performance, and accelerated suspension wear—exactly what you can't afford during competition or spirited driving. The RACE TECH SKOS 14 delivers the precision fit and material durability needed...SKOS14- SKU:
- SKOS14
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK
- UNITS:
- EACH
- PRODUCT NAME:
- SHAFT SEAL
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- INSIDE DIAMETER IMPERIAL:
- 0.55'
- INSIDE DIAMETER METRIC:
- 14.00 MM
- MODEL:
- FOR KYB
- OUTSIDE DIAMETER IMPERIAL:
- 1.18'
- RIDING STYLE:
- ATV
MSRP: $9.99Now: $8.99Was: $9.99 -
On Sale
RACE TECH Front Spring - Blue - Sport Series - Spring Rate 358 lbs/in SRSP 622864
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99If you're serious about suspension tuning, spring rate precision directly impacts your lap times and handling consistency. The RACE TECH Front Spring delivers the stiffness you need without excess weight, giving you the responsiveness that separates...SRSP622864- SKU:
- SRSP622864
- Availability:
- Ships Same Business Day
- Weight:
- 5.75 LBS
- COLOR/FINISH:
- BLUE
- LINEAR SPRING RATE IMPERIAL:
- 358.00 LB/IN
- LINEAR SPRING RATE METRIC:
- 6.40 KG/MM
- MODEL:
- SPORT SERIES
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SHOCK SPRING
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 10.63'
MSRP: $149.99Now: $134.99Was: $149.99 -
On Sale
RACE TECH Front Spring - Blue - Sport Series - Spring Rate 258 lbs/in SRSP 672746
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Front-end geometry and ride quality hinge on spring precision—and this is where the RACE TECH Sport Series delivers. A 258 lbs/in spring rate gives you the stiffness needed for consistent cornering without sacrificing predictable load response, making it...SRSP672746- SKU:
- SRSP672746
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- COLOR/FINISH:
- BLUE
- MODEL:
- SPORT SERIES
- RIDING STYLE:
- OFF-ROAD
- LINEAR SPRING RATE IMPERIAL:
- 258.00 LB/IN
- LINEAR SPRING RATE METRIC:
- 4.60 KG/MM
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SHOCK SPRING
- LENGTH IMPERIAL:
- 10.51'
- UNITS:
- PAIR
MSRP: $149.99Now: $134.99Was: $149.99
