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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On Sale
RACE TECH Fork Springs - 0.85 kg/mm FRSP 4374085
RACE TECH
MSRP: $115.95Now: $104.36Was: $115.95Precision fork tuning demands springs that deliver consistent, predictable performance lap after lap. The RACE TECH 0.85 kg/mm fork springs combine high stiffness-to-mass ratio with strict rate tolerances, giving you the front-end support needed for...04050302- SKU:
- 04050302
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- LENGTH IMPERIAL:
- 29.13'
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 40.00 MM - 43.00 MM
- SPRING RATE IMPERIAL:
- 47.60 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
MSRP: $115.95Now: $104.36Was: $115.95Qty in Cart: 0Quantity:Price:MSRP: $115.95Now: $104.36Was: $115.95Subtotal: -
On Sale
RACE TECH Fork Springs - 0.48 kg/mm FRSP 444648
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precision fork suspension tuning demands springs that deliver exact, repeatable rates lap after lap. The RACE TECH 0.48 kg/mm fork springs are engineered for riders who refuse to compromise on front-end feedback and consistency. Whether you're dialing in...04050267- SKU:
- 04050267
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
- LENGTH IMPERIAL:
- 18.19'
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
MSRP: $149.99Now: $134.99Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $134.99Was: $149.99Subtotal: -
On Sale
RACE TECH Fork Springs - 0.42 kg/mm FRSP 444942
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precise fork damping is the foundation of predictable front-end feel, and these RACE TECH springs deliver the stiffness your setup demands without adding rotational mass. Whether you're dialing in a dirt bike, motocross machine, or off-road racer, a 0.42...04050832- SKU:
- 04050832
- Availability:
- Ships Same Business Day
- Weight:
- 2.66 LBS
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 23.50 LB/IN
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 19.57'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
MSRP: $149.99Now: $134.99Was: $149.99 -
On Sale
RACE TECH Fork Springs - 0.52 kg/mm FRSP 444952
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precise fork damping is non-negotiable when you're pushing your bike to the limit. The RACE TECH Fork Springs deliver the stiffness and consistency your suspension demands, whether you're dialing in a track setup or perfecting your ride height for...04050838- SKU:
- 04050838
- Availability:
- Ships Same Business Day
- Weight:
- 3.13 LBS
- LENGTH IMPERIAL:
- 19.57'
- SPRING RATE IMPERIAL:
- 29.10 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $149.99Now: $134.99Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $134.99Was: $149.99Subtotal: -
On Sale
RACE TECH Fork Springs - 0.46 kg/mm FRSP 224446
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precision fork tuning demands springs that deliver consistent performance lap after lap without sagging or unpredictable behavior. The RACE TECH 0.46 kg/mm fork springs are shot-peened and heat-treated chrome silicon steel, engineered to maintain their...04050158- SKU:
- 04050158
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- LENGTH IMPERIAL:
- 17.32'
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- OUTSIDE DIAMETER METRIC:
- 22.50 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
MSRP: $149.99Now: $134.99Was: $149.99 -
On Sale
RACE TECH Fork Springs - 0.48 kg/mm FRSP 444748
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precision fork performance demands springs that deliver consistent, repeatable rates lap after lap—no compromises. The RACE TECH 0.48 kg/mm fork springs are engineered for riders who demand exact spring force tolerances and minimal deflection under load...04050098- SKU:
- 04050098
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- OUTSIDE DIAMETER METRIC:
- 43.60 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 18.58'
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
MSRP: $149.99Now: $134.99Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $134.99Was: $149.99Subtotal: -
On Sale
RACE TECH Gold Valve Cartridge Fork Emulators for Damping Rod Forks FEGV 3001
RACE TECH
MSRP: $199.99Now: $179.99Was: $199.99Damping rod forks are affordable and robust, but they often lack the refined control of modern cartridge systems. The RACE TECH Gold Valve Cartridge Fork Emulators transform your existing fork into a tunable suspension component that responds predictably...FEGV3001- SKU:
- FEGV3001
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MODEL:
- GOLD VALVE
- PRODUCT NAME:
- CARTRIDGE EMULATOR
- COLOR/FINISH:
- GOLD
- OUTSIDE DIAMETER IMPERIAL:
- 1.38'
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- FORK
MSRP: $199.99Now: $179.99Was: $199.99 -
On Sale
RACE TECH Fork Springs - 0.26 kg/mm FRSP 274326
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precision fork suspension tuning demands springs engineered to exact specifications, and RACE TECH's 0.26 kg/mm springs deliver repeatable performance lap after lap. Whether you're fine-tuning front-end geometry for track conditions or dialing in...FRSP274326- SKU:
- FRSP274326
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- SPRING RATE IMPERIAL:
- 14.60 LB/IN
- LENGTH IMPERIAL:
- 16.93'
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 27.00 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
MSRP: $149.99Now: $134.99Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $134.99Was: $149.99Subtotal: -
On Sale
RACE TECH Fork Springs - 0.28 kg/mm FRSP 274328
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Front fork performance hinges on spring rate precision—too soft and you'll experience excessive dive under braking; too stiff and you'll lose traction through compressions. The RACE TECH 0.28 kg/mm fork springs deliver the exact stiffness curve your...FRSP274328- SKU:
- FRSP274328
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 15.70 LB/IN
- LENGTH IMPERIAL:
- 16.93'
- OUTSIDE DIAMETER METRIC:
- 27.00 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
MSRP: $149.99Now: $134.99Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $134.99Was: $149.99Subtotal: -
On Sale
RACE TECH Fork Springs - 0.30 kg/mm FRSP 274330
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precise fork damping directly impacts your suspension's responsiveness and stability through corners—especially at speed where microseconds matter. The RACE TECH 0.30 kg/mm fork spring delivers predictable, consistent performance with tolerance accuracy...FRSP274330- SKU:
- FRSP274330
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- PRODUCT NAME:
- SPRING KIT
- OUTSIDE DIAMETER METRIC:
- 27.00 MM
- LENGTH IMPERIAL:
- 16.93'
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 16.80 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
MSRP: $149.99Now: $134.99Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $134.99Was: $149.99Subtotal: -
On Sale
RACE TECH Fork Pressure Springs for Dual Chamber Forks - 2.2 kg/mm FRPS 261022
RACE TECH
MSRP: $79.99Now: $71.99Was: $79.99Fine-tuning your fork's response requires precision internals that match your riding style and track conditions. RACE TECH fork pressure springs deliver consistent, predictable damping characteristics by optimizing the dual-chamber fork's air spring...04050250- SKU:
- 04050250
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
- MODEL:
- FOR DUAL-CHAMBER FORK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- PRESSURE SPRING
- SPRING RATE IMPERIAL:
- 123.20 LB/IN
- UNITS:
- PAIR
MSRP: $79.99Now: $71.99Was: $79.99 -
FACTORY CONNECTION Front Fork Springs - 0.50 kg/mm LSA-050
FACTORY CONNECTION
$159.95Precision fork geometry starts with the right spring rate, and Factory Connection's LSA-050 delivers the consistency that competitive riders demand. These U.S.-manufactured springs are engineered for the bumps and compressions you'll encounter at speed,...LSA050- SKU:
- LSA050
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 28.00 LB/IN
- TYPE:
- FORK
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.45 kg/mm LRA-045
FACTORY CONNECTION
$149.99Factory Connection front fork springs deliver the precision and consistency your suspension demands, whether you're fine-tuning a race bike or rebuilding a worn-out setup. The 0.45 kg/mm rate strikes the balance between responsive handling and consistent...04050166- SKU:
- 04050166
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.20 LB/IN
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.55 kg/mm LRE-055
FACTORY CONNECTION
$149.99Factory Connection front fork springs deliver the precision dampening and consistent rate your suspension demands, whether you're pushing through desert whoops or dialing in track setup. These springs are engineered for durability under extreme...04050318- SKU:
- 04050318
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- FORK
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 30.80 LB/IN
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal:
