Dirt Bike Suspension
Dirt Bike Suspension Parts at JJ Motorsports
Fine-tune your ride with advanced suspension components from JJ Motorsports. From rear suspension upgrades to precision-manufactured forks, these products ensure improved handling and shock absorption. Find complementary off-road dirt bike parts to optimize every ride on the track or trail.
Shop trusted brands like Progressive Suspension for adjustable shocks and Fox for high-performance forks. Explore related categories such as Dirt Bike Braking for stopping power or Dirt Bike Tires and Wheels for complete setups.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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RACE TECH Fork Springs - 0.40 kg/mm FRSP 434640
RACE TECH
$149.99Front-end geometry and ride quality depend entirely on consistent spring rates, and any variance throws off your suspension tuning across the entire range. The RACE TECH Fork Springs deliver rate accuracy within 2% through precision heat-treatment and...04050024- SKU:
- 04050024
- Availability:
- Ships Same Business Day
- Weight:
- 2.71 LBS
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 22.40 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 43.50 MM
- PRODUCT NAME:
- SPRING KIT
- LENGTH IMPERIAL:
- 18.15'
$149.99 -
RACE TECH Gold Valve Cartridge Fork Emulators for Damping Rod Forks - 41 mm FEGV 4101
RACE TECH
$199.99Damping rod forks limit your tuning options and performance potential—especially if you're pushing harder on the track or trail. The RACE TECH Gold Valve Cartridge Fork Emulators transform your existing fork into a responsive, adjustable suspension...FEGV4101- SKU:
- FEGV4101
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- GOLD VALVE
- PRODUCT NAME:
- CARTRIDGE EMULATOR
- OUTSIDE DIAMETER IMPERIAL:
- 1.61'
- TYPE:
- FORK
- UNITS:
- KIT
$199.99 -
RACE TECH Front/Rear Spring - Blue - Race Series - Spring Rate 280 lbs/in SRSP 652650
RACE TECH
$149.99Precision suspension geometry demands springs that deliver consistent performance lap after lap without compromise. The RACE TECH 280 lbs/in front/rear spring is engineered for racers who need predictable, repeatable handling characteristics—eliminating...13120328- SKU:
- 13120328
- Availability:
- Ships Same Business Day
- Weight:
- 3.64 LBS
- COLOR/FINISH:
- SHOT PEENED
- LENGTH IMPERIAL:
- 10.125'
- LINEAR SPRING RATE IMPERIAL:
- 280.00 LB/IN
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLUE
- LINEAR SPRING RATE METRIC:
- 5.00 KG/MM
- MODEL:
- RACE SERIES®
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHOCK SPRING
- UNITS:
- EACH
$149.99 -
RACE TECH Front/Rear Spring - Blue - Race Series - Spring Rate 290 lbs/in SRSP 652652
RACE TECH
$149.99A precision-engineered suspension component demands a spring that matches your performance expectations—and the RACE TECH Front/Rear Spring delivers exactly that. Built from premium chrome silicon wire and shot-peened for durability, this 290 lbs/in...13120329- SKU:
- 13120329
- Availability:
- Ships Same Business Day
- Weight:
- 3.93 LBS
- LENGTH IMPERIAL:
- 10.125'
- MOUNTING POSITION:
- REAR
- LINEAR SPRING RATE IMPERIAL:
- 290.00 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- LINEAR SPRING RATE METRIC:
- 5.20 KG/MM
- MODEL:
- RACE SERIES®
- COLOR/FINISH:
- SHOT PEENED
- RIDING STYLE:
- OFF-ROAD
$149.99 -
RACE TECH Progressively Wound Shock Spring - Blue - P30 - Spring Rate 532 lbs/in SRSP 6326P30
RACE TECH
$199.99Rear suspension geometry demands precision—too stiff and your chassis chatters; too soft and you're kissing the bump stops. RACE TECH's progressively wound shock spring solves this compromize by delivering initial compliance for comfort while building...13120121- SKU:
- 13120121
- Availability:
- Ships Same Business Day
- Weight:
- 6.75 LBS
- COLOR/FINISH:
- BLUE
- COLOR/FINISH:
- SHOT PEENED
- PROGRESSIVE SPRING RATE IMPERIAL:
- 532.00 LB/IN INITIAL
- PROGRESSIVE SPRING RATE METRIC:
- 9.50 KG/MM INITIAL
- RIDING STYLE:
- OFF-ROAD
- LENGTH IMPERIAL:
- 10.25'
- MOUNTING POSITION:
- REAR
- SPRING TYPE:
- PROGRESSIVE WOUND SPRING
- PRODUCT NAME:
- SHOCK SPRING
- TYPE:
- P30
- UNITS:
- EACH
$199.99 -
RACE TECH Rear Spring - Blue - Sport Series - Spring Rate 280 lbs/in SRSP 462050
RACE TECH
$149.99A properly tuned rear spring is fundamental to consistent cornering performance and predictable weight transfer during competitive driving. The RACE TECH Sport Series delivers the precision stiffness you need for responsive handling without sacrificing...13120020- SKU:
- 13120020
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MODEL:
- SPORT SERIES
- COLOR/FINISH:
- BLUE
- LENGTH IMPERIAL:
- 8.00'
- LINEAR SPRING RATE IMPERIAL:
- 280.00 LB/IN
- LINEAR SPRING RATE METRIC:
- 5.00 KG/MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
$149.99 -
RACE TECH Rear Spring - Blue - Sport Series - Spring Rate 300 lbs/in SRSP 462054
RACE TECH
$149.99If you're serious about corner speed and consistent lap times, suspension geometry matters—and that starts with a spring that delivers predictable, linear rate characteristics without fade. The RACE TECH Rear Spring gives you the stiffness you need to...13120021- SKU:
- 13120021
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- LINEAR SPRING RATE METRIC:
- 5.40 KG/MM
- LINEAR SPRING RATE IMPERIAL:
- 300.00 LB/IN
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- LENGTH IMPERIAL:
- 8.00'
- MODEL:
- SPORT SERIES
$149.99 -
RACE TECH Progressively Wound Shock Spring - Orange - P25 - Spring Rate 493 lbs/in SRSP 6326P25
RACE TECH
$199.99Rear suspension that's simultaneously compliant and responsive is rare—until now. This progressively wound spring solves the dual problem of harshness over small bumps and insufficient bottoming resistance, delivering a plush ride without sacrificing...13120024- SKU:
- 13120024
- Availability:
- Ships Same Business Day
- Weight:
- 5.60 LBS
- LENGTH IMPERIAL:
- 10.25'
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SHOT PEENED
- PRODUCT NAME:
- SHOCK SPRING
- SPRING TYPE:
- PROGRESSIVE WOUND SPRING
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- PROGRESSIVE SPRING RATE IMPERIAL:
- 493.00 LB/IN INITIAL
- TYPE:
- P25
- PROGRESSIVE SPRING RATE METRIC:
- 8.80 KG/MM INITIAL
- RIDING STYLE:
- OFF-ROAD
$199.99 -
RACE TECH Gold Valve Cartridge Fork Emulators for Damping Rod Forks FEGV 3301
RACE TECH
$199.99Stock damping rod forks limit your suspension's potential, forcing you to choose between comfort and control. The RACE TECH Gold Valve Cartridge Fork Emulators transform your existing fork internals into a responsive, tunable system that rivals dedicated...FEGV3301- SKU:
- FEGV3301
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- TYPE:
- FORK
- PRODUCT NAME:
- CARTRIDGE EMULATOR
- COLOR/FINISH:
- GOLD
- OUTSIDE DIAMETER IMPERIAL:
- 0.94'
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MODEL:
- GOLD VALVE
$199.99 -
RACE TECH Super Slick Inner Fork Bushing - 47 mm X 20 mm W x 1 mm T FMBI 47201 P
RACE TECH
$31.95Suspension performance hinges on reducing friction at every contact point—and fork bushings are critical. The RACE TECH Super Slick Inner Fork Bushing delivers measurably lower friction than standard options, translating to more responsive fork action...FMBI47201P- SKU:
- FMBI47201P
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- THICKNESS METRIC:
- 1.00 MM
- UNITS:
- PAIR
- FOR FORK TUBE DIAMETER METRIC:
- 47.00 MM
- INNER BUSHING WIDTH METRIC:
- 20.00 MM
- MOUNTING POSITION:
- INNER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- MODEL:
- SUPER SLICK
- PRODUCT NAME:
- BUSHING KIT
$31.95 -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 364746
RACE TECH
$149.99Fork springs are critical to suspension performance—they directly control your bike's ability to absorb impacts, maintain chassis geometry, and transfer power to the track. The RACE TECH 0.46 kg/mm spring delivers the precision stiffness you need for...FRSP364746- SKU:
- FRSP364746
- Availability:
- Ships Same Business Day
- Weight:
- 2.88 LBS
- LENGTH IMPERIAL:
- 18.58'
- PRODUCT NAME:
- SPRING KIT
- OUTSIDE DIAMETER METRIC:
- 35.80 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
$149.99 -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 375046
RACE TECH
$149.99Precision fork performance demands springs engineered to exact specifications—and RACE TECH delivers. These 0.46 kg/mm springs combine shot-peened, heat-treated chrome silicon steel with a stiffness-to-mass ratio that translates to responsive front-end...FRSP375046- SKU:
- FRSP375046
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- OUTSIDE DIAMETER METRIC:
- 36.80 MM
- LENGTH IMPERIAL:
- 18.58'
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- TYPE:
- FORK
$149.99 -
RACE TECH Fork Springs - 0.50 kg/mm FRSP 395150
RACE TECH
$149.99Precision fork tuning demands springs engineered to exact specifications—and the RACE TECH 0.50 kg/mm fork springs deliver repeatability that separates competitive setups from guesswork. With heat-treated chrome silicon construction and shot-peening for...FRSP395150- SKU:
- FRSP395150
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- SPRING RATE IMPERIAL:
- 28.00 LB/IN
- LENGTH IMPERIAL:
- 20.16'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
$149.99 -
RACE TECH Rear Seal Head Assembly - 40 mm ID Body x 18 mm OD Shaft SYSH 4618
RACE TECH
$59.99A quality rear seal head assembly is critical to preventing fluid leakage and maintaining system integrity under racing conditions. The RACE TECH SYSH 4618 delivers precision engineering and reliable performance, whether you're sealing a high-rpm engine...SYSH4618- SKU:
- SYSH4618
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- PRODUCT NAME:
- SEAL HEAD ASSEMBLY
- UNITS:
- EACH
- OUTSIDE DIAMETER IMPERIAL:
- 1.81'
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER IMPERIAL:
- 0.47'
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- TYPE:
- STANDARD
$59.99 -
RACE TECH Shock Oil Seal - 16 mm x 36 mm - KYB SKOS 16
RACE TECH
$12.99A worn shock seal compromises your suspension's ability to maintain consistent damping pressure, leading to fluid loss, reduced responsiveness, and unpredictable handling on track or trail. The RACE TECH Shock Oil Seal restores your KYB shock's original...SKOS16- SKU:
- SKOS16
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHAFT SEAL
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- INSIDE DIAMETER IMPERIAL:
- 0.63'
- MODEL:
- FOR KYB
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER METRIC:
- 16.00 MM
- RIDING STYLE:
- STREET
- TYPE:
- SHOCK
- OUTSIDE DIAMETER IMPERIAL:
- 1.42'
$12.99 -
FACTORY CONNECTION Shock Spring - Spring Rate 375 lbs/in AAL-0067
FACTORY CONNECTION
$159.95Shock springs are the foundation of any suspension system's performance, and a poorly chosen rate will compromise handling, ride quality, and durability across all conditions. The FACTORY CONNECTION 375 lbs/in spring delivers consistent, predictable...13120198- SKU:
- 13120198
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- LINEAR SPRING RATE IMPERIAL:
- 375.00 LB/IN
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SHOT PEENED
- SPRING TYPE:
- SINGLE LINEAR RATE
$159.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 170 lbs/in NNE-0030
FACTORY CONNECTION
$149.99A precision shock spring demands exact specifications to deliver consistent performance lap after lap. Factory Connection's 170 lbs/in spring combines meticulous manufacturing tolerances with proven durability, ensuring your suspension responds...13120211- SKU:
- 13120211
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- COLOR/FINISH:
- SHOT PEENED
- MOUNTING POSITION:
- REAR
- SPRING TYPE:
- SINGLE LINEAR RATE
- UNITS:
- EACH
- LINEAR SPRING RATE IMPERIAL:
- 170.00 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
$149.99 -
FACTORY CONNECTION Shock Spring - Spring Rate 274 lbs/in ALA-0049
FACTORY CONNECTION
$159.95Suspension tuning demands precision, and a shock spring's rate directly impacts your chassis balance, ride height, and overall handling characteristics. The FACTORY CONNECTION Shock Spring delivers consistent, accurate spring rates without the variances...13120389- SKU:
- 13120389
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
- COLOR/FINISH:
- SHOT PEENED
- LINEAR SPRING RATE IMPERIAL:
- 274.00 LB/IN
- RIDING STYLE:
- OFF-ROAD
- SPRING TYPE:
- SINGLE LINEAR RATE
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.45 kg/mm LAU-045
FACTORY CONNECTION
$159.95Factory Connection front fork springs deliver precision suspension tuning for riders who demand exact spring rates and consistent performance lap after lap. Whether you're dialing in your setup for track days or professional competition, these 0.45 kg/mm...LAU045- SKU:
- LAU045
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- SPRING RATE IMPERIAL:
- 25.20 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95 -
FACTORY CONNECTION Shock Seal FCS-16U
FACTORY CONNECTION
$31.00Stock shock seals degrade under heat cycles and temperature swings, compromising your suspension's damping performance and allowing fluid weepage that shortens shock life. The FACTORY CONNECTION FCS-16U shock seal upgrades you to a compliant,...FCS16U- SKU:
- FCS16U
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- MOUNTING POSITION:
- REAR
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- SEAL
- TYPE:
- SHOCK SHAFT
- UNITS:
- EACH
$31.00
