Dirt Bike Front Suspension
Dirt Bike Front Suspension Parts: Fork Springs, Guards & Launch Devices for Yamaha at JJ Motorsports
Enhance your dirt bike's front suspension with premium parts from JJ Motorsports, designed for smoother damping and protection in motocross, enduro, and trail riding. These components improve handling and reduce wear for reliable performance.
Shop Works Connection, Moose Racing, and Polisport front suspension parts for durable, easy-to-install upgrades. Explore related categories such as dirt bike suspension for shocks and bushings, or dirt bike for full builds to complete your setup and achieve balanced, responsive handling across all conditions, from high-speed jumps to technical singletrack.
Top Dirt Bike Front Suspension Parts
- Works Connection Pro Launch Start Device Yamaha 12-416 – Adjustable launch device for Yamaha YZ; reduces fork compression for better starts.
- Moose Racing Fork Springs 31 mm 2.4 N/mm 0405-1120 – Progressive fork springs for 31mm tubes; improves damping on Kawasaki KX models.
- Polisport Fork Guard Cover Black 8398100002 – Black plastic fork guards; protects stanchions from rocks on Honda CRF.
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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Bikeman Performance Front Fork Spring Service Kit 2019-2023 GasGas EC 250 119994801901
BIKEMAN PERFORMANCE
$78.95Worn or degraded fork springs rob your bike of precise handling and increase brake dive—both critical issues on technical terrain. The Bikeman Performance Front Fork Spring Service Kit delivers a complete refresh of your suspension geometry, restoring...04051115- SKU:
- 04051115
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- SERVICE KIT
- TYPE:
- FORK SPRINGS
$78.95Qty in Cart: 0Quantity:Price:$78.95Subtotal: -
MOTION PRO Micro Bleeder Set - Orange 11-0081
MOTION PRO
$114.99Air trapped in your fork system degrades damping performance and creates harsh, unpredictable suspension behavior—exactly what you don't want on track or trail. The MOTION PRO Micro Bleeder Set eliminates this problem with a simple bolt-on installation,...04040145- SKU:
- 04040145
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- MODEL:
- MICRO
- TYPE:
- FORK AIR
- COLOR/FINISH:
- STAINLESS STEEL
- PRODUCT NAME:
- BLEEDER
$114.99 -
MOTION PRO Micro Bleeder Set - Black 11-0080
MOTION PRO
$114.99Air trapped in your fork internals creates harshness and unpredictable damping characteristics that degrade suspension performance. The MOTION PRO Micro Bleeder Set eliminates this problem with a tool-free bleeding solution that installs in minutes as a...04040144- SKU:
- 04040144
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- STAINLESS STEEL
- PRODUCT NAME:
- BLEEDER
- MODEL:
- MICRO
- TYPE:
- FORK AIR
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- BLUE
- UNITS:
- PAIR
$114.99 -
MOTION PRO Micro Bleeder Set - Gold 11-0089
MOTION PRO
$114.99Air trapped in your fork system reduces responsiveness and creates unpredictable harshness in your suspension geometry. The MOTION PRO Micro Bleeder Set eliminates this problem with a tool-free, one-time installation that lets you purge pressure buildup...04040279- SKU:
- 04040279
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- GOLD
- COLOR/FINISH:
- SILVER
- MODEL:
- MICRO
- PRODUCT NAME:
- BLEEDER
- TYPE:
- FORK AIR
- UNITS:
- PAIR
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
$114.99 -
MOTION PRO Micro Bleeder Set - Silver 11-0111
MOTION PRO
$16.99Air trapped in your fork lines compromises damping consistency and creates unpredictable harshness during braking and compression cycles. The MOTION PRO Micro Bleeder Set eliminates this problem with a tool-free, one-way design that lets you purge...04040316- SKU:
- 04040316
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- MICRO
- PRODUCT NAME:
- BLEEDER
- TYPE:
- FORK AIR
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- STAINLESS STEEL
$16.99 -
MOTION PRO Micro Bleeder Set - Silver 11-0095
MOTION PRO
$114.99Air trapped in your fork system compromises damping performance and creates harshness that translates directly to the trail. The MOTION PRO Micro Bleeder Set eliminates this problem with a simple, tool-free solution that takes minutes to install. By...04040280- SKU:
- 04040280
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- STAINLESS STEEL
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- MICRO
- PRODUCT NAME:
- BLEEDER
- TYPE:
- FORK AIR
- UNITS:
- PAIR
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
$114.99 -
RACE TECH Fork Springs - 0.44 kg/mm FRSP 364744
RACE TECH
$149.99Precision fork tuning demands springs that deliver consistent performance lap after lap. The RACE TECH Fork Springs (0.44 kg/mm) combine shot-peened, heat-treated chrome silicon steel with a high stiffness-to-mass ratio—giving you the responsiveness...FRSP364744- SKU:
- FRSP364744
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 18.58'
- OUTSIDE DIAMETER METRIC:
- 35.80 MM
- SPRING RATE IMPERIAL:
- 24.60 LB/IN
$149.99 -
RACE TECH Front Fork Spring Kit - 0.40 kg/mm - 0.46 kg/mm FRSP 3750K
RACE TECH
$159.99Upgrading your front fork springs is one of the most direct ways to improve suspension responsiveness and cornering stability under load. The RACE TECH Front Fork Spring Kit delivers a precisely calibrated rate range that works across most conventional...FRSP3750K- SKU:
- FRSP3750K
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 22.40 LB/IN - 25.80 LB/IN
- TYPE:
- FORK
- UNITS:
- KIT
$159.99 -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 394646
RACE TECH
$149.99Precision fork tuning demands springs that respond predictably under load, and the RACE TECH 0.46 kg/mm fork springs deliver exactly that through meticulous engineering and material science. Shot-peened chrome silicon steel construction ensures...FRSP394646- SKU:
- FRSP394646
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- LENGTH IMPERIAL:
- 17.91'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
RACE TECH Shock Rebound Separator Valve SMRS 1215000Y
RACE TECH
$69.99Stock shock absorbers compromise rebound control by flowing equally in compression and rebound, leaving your suspension mushy and unresponsive on hard hits. The RACE TECH Shock Rebound Separator Valve SMRS 1215000Y replaces your stock shaft nut with an...04500237- SKU:
- 04500237
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- UTV
- TYPE:
- SHOCK
- PRODUCT NAME:
- REBOUND VALVE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$69.99 -
RACE TECH Steering Damping Gold Valve Kit CMGV 2001
RACE TECH
$119.99Stock steering dampers on the CRF250R and CRF450R lack the precision needed for aggressive trail riding and competitive racing. The RACE TECH Steering Damping Gold Valve Kit CMGV 2001 replaces inadequate OEM internals with a tunable Gold Valve system,...04100104- SKU:
- 04100104
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- STEERING DAMPING
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$119.99 -
RACE TECH Steering Damping Gold Valve Kit CMGV 2401
RACE TECH
$119.99Stock steering dampers on the CRF250R and CRF450R simply don't provide adequate resistance through aggressive trail conditions, resulting in vague feedback and unpredictable handlebar response when you need precision most. The RACE TECH Steering Damping...04100138- SKU:
- 04100138
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- STEERING DAMPING
$119.99Qty in Cart: 0Quantity:Price:$119.99Subtotal: -
RACE TECH Super Slick Outer Fork Bushings - 48 mm x 15 mm W x 2 mm T FMBO 48152P
RACE TECH
$39.99Fork bushings are critical to suspension responsiveness and longevity—worn or low-quality bushings introduce play, friction, and inconsistent damping that degrades handling. RACE TECH Super Slick Outer Fork Bushings eliminate these problems with a...04130061- SKU:
- 04130061
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FOR FORK TUBE DIAMETER METRIC:
- 48.00 MM
- INNER BUSHING WIDTH METRIC:
- 15.00 MM
- MODEL:
- SUPER SLICK
- PRODUCT NAME:
- BUSHING KIT
- THICKNESS METRIC:
- 2.00 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- MOUNTING POSITION:
- OUTER
$39.99 -
RACE TECH Fork Springs - 0.90 kg/mm FRSP 4374090
RACE TECH
$109.99Precision fork tuning demands springs that deliver consistent performance lap after lap. The RACE TECH 0.90 kg/mm fork springs offer a stiffness-to-mass ratio engineered for responsive handling without sacrificing compliance, making them ideal for riders...04050303- SKU:
- 04050303
- Availability:
- Ships Same Business Day
- Weight:
- 2.94 LBS
- OUTSIDE DIAMETER METRIC:
- 40.00 MM - 43.00 MM
- SPRING RATE IMPERIAL:
- 50.40 LB/IN
- LENGTH IMPERIAL:
- 29.13'
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- FORK
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
$109.99 -
RACE TECH Fork Springs - 0.49 kg/mm FRSP 434949
RACE TECH
$149.99Precision fork tuning demands springs engineered to exacting standards, and RACE TECH delivers exactly that. These 0.49 kg/mm springs combine a high stiffness-to-mass ratio with shot-peened, heat-treated chrome silicon steel—ensuring consistent...04050146- SKU:
- 04050146
- Availability:
- Ships Same Business Day
- Weight:
- 2.98 LBS
- OUTSIDE DIAMETER METRIC:
- 42.80 MM
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 27.40 LB/IN
- TYPE:
- FORK
- LENGTH IMPERIAL:
- 19.41'
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
$149.99 -
RACE TECH Fork Springs - 0.38 kg/mm FRSP 444538
RACE TECH
$149.99Precision fork control demands springs engineered to exact specifications—and RACE TECH's 0.38 kg/mm fork springs deliver the consistency that separates podium finishes from mid-pack results. Shot-peened and heat-treated chrome silicon steel ensures...04050147- SKU:
- 04050147
- Availability:
- Ships Same Business Day
- Weight:
- 2.67 LBS
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- PRODUCT NAME:
- SPRING KIT
- LENGTH IMPERIAL:
- 17.91'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- SPRING RATE IMPERIAL:
- 21.30 LB/IN
- UNITS:
- PAIR
$149.99 -
RACE TECH Fork Springs - 0.38 kg/mm FRSP 444738
RACE TECH
$149.99Precision fork tuning demands springs that deliver consistent, predictable performance lap after lap. The RACE TECH 0.38 kg/mm fork springs are engineered with chrome silicon steel and shot-peening to maintain exact spring rates under extreme suspension...04050093- SKU:
- 04050093
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- PRODUCT NAME:
- SPRING KIT
- OUTSIDE DIAMETER METRIC:
- 43.60 MM
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 21.30 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 18.58'
$149.99 -
RACE TECH Fork Springs - 0.40 kg/mm FRSP 444740
RACE TECH
$149.99Precision fork tuning demands springs engineered to exact specifications, and the RACE TECH 0.40 kg/mm fork springs deliver consistency that matches professional-grade expectations. Shot-peened and heat-treated chrome silicon steel ensures durability...04050094- SKU:
- 04050094
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- PRODUCT NAME:
- SPRING KIT
- LENGTH IMPERIAL:
- 18.58'
- SPRING RATE IMPERIAL:
- 22.40 LB/IN
- OUTSIDE DIAMETER METRIC:
- 43.60 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$149.99 -
RACE TECH Fork Springs - 0.42 kg/mm FRSP 444742
RACE TECH
$149.99If you're running a competition machine that demands precise suspension tuning, fork spring rate accuracy directly impacts your lap times and rider feedback. The RACE TECH 0.42 kg/mm springs deliver consistent performance across the entire stroke with...04050095- SKU:
- 04050095
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- LENGTH IMPERIAL:
- 18.58'
- PRODUCT NAME:
- SPRING KIT
- OUTSIDE DIAMETER METRIC:
- 43.60 MM
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 23.50 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
$149.99 -
RACE TECH Fork Springs - 0.44 kg/mm FRSP 444744
RACE TECH
$149.99Fork springs are the foundation of your front-end performance—too soft and you'll lose precision through corners; too stiff and you'll sacrifice compliance on rough surfaces. The RACE TECH 0.44 kg/mm fork springs deliver the high stiffness-to-mass ratio...04050096- SKU:
- 04050096
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 24.60 LB/IN
- LENGTH IMPERIAL:
- 18.58'
- OUTSIDE DIAMETER METRIC:
- 43.60 MM
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$149.99
