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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FACTORY CONNECTION Front Fork Springs - 0.53 kg/mm LSU-053
FACTORY CONNECTION
$159.95Precision front fork suspension demands springs engineered to exacting standards—Factory Connection delivers exactly that with their LSU-053 units. These CNC-wound springs maintain consistent rates across the entire stroke, eliminating the performance...04050512- SKU:
- 04050512
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 29.70 LB/IN
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.47 kg/mm LRN-047
FACTORY CONNECTION
$159.95Front fork springs are the foundation of your suspension's responsiveness and longevity. The FACTORY CONNECTION LRN-047 delivers consistent, predictable spring rates that withstand the punishment of high-speed cornering and repeated compression cycles...04050824- SKU:
- 04050824
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- SPRING RATE IMPERIAL:
- 26.30 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.49 kg/mm LRN-049
FACTORY CONNECTION
$159.95Suspension tuning demands precision, and OEM springs often fail to deliver the specific damping characteristics your bike requires. The FACTORY CONNECTION Front Fork Springs offer a 0.49 kg/mm rate engineered for responsive, consistent performance across...04050825- SKU:
- 04050825
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 27.40 LB/IN
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.51 kg/mm LRN-051
FACTORY CONNECTION
$159.95Factory Connection front fork springs deliver the consistent damping characteristics and reliability that competitive riders demand. Precision manufacturing ensures accurate spring rates that translate to predictable suspension geometry throughout your...04050826- SKU:
- 04050826
- Availability:
- Ships Same Business Day
- Weight:
- 2.91 LBS
- SPRING RATE IMPERIAL:
- 28.60 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.53 kg/mm LRN-053
FACTORY CONNECTION
$159.95Front fork springs are critical to your suspension's ability to absorb impacts, maintain consistent ride height, and deliver predictable handling under load. The FACTORY CONNECTION LRN-053 delivers precision-wound performance with fatigue-resistant...04050827- SKU:
- 04050827
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 29.70 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95 -
RACE TECH Ultra Slick Fork Bushing for Showa - 45 mm FSBI 45US P
RACE TECH
$34.99Stock Showa fork bushings bind under load, creating unpredictable handling and a harsh ride that masks your bike's true potential. RACE TECH's Ultra Slick bushing reduces friction and eliminates binding without altering critical fork clearances,...FSBI45USP- SKU:
- FSBI45USP
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- FOR FORK TUBE DIAMETER METRIC:
- 45.00 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- MOUNTING POSITION:
- INNER
- PRODUCT NAME:
- BUSHING KIT
- UNITS:
- PAIR
$34.99 -
RACE TECH Ultra Slick Fork Bushing for Showa - 43 mm FSBI 43US P
RACE TECH
$34.99Stock Showa inverted forks often develop binding and harshness that compromise both comfort and precision handling. The RACE TECH Ultra Slick Fork Bushing eliminates this friction with a precision-engineered inner bushing design that restores smooth,...FSBI43USP- SKU:
- FSBI43USP
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- FOR FORK TUBE DIAMETER METRIC:
- 43.00 MM
- MOUNTING POSITION:
- INNER
- PRODUCT NAME:
- BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$34.99 -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 435146
RACE TECH
$149.99Precise fork control is non-negotiable in high-performance racing, and fork spring rate directly determines your chassis responsiveness and rider confidence through corners. The RACE TECH Fork Springs deliver a 0.46 kg/mm rate with exceptional...FRSP435146- SKU:
- FRSP435146
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- LENGTH IMPERIAL:
- 20'
- OUTSIDE DIAMETER METRIC:
- 43.20 MM
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$149.99 -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 434946
RACE TECH
$149.99Fork springs are the foundation of responsive suspension geometry, directly influencing your bike's handling precision and ability to manage weight transfer under acceleration and braking. The RACE TECH 0.46 kg/mm spring delivers consistent, predictable...FRSP434946- SKU:
- FRSP434946
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 19.41'
- OUTSIDE DIAMETER METRIC:
- 42.70 MM
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
$149.99 -
RACE TECH Fork Springs - 0.44 kg/mm FRSP 434944
RACE TECH
$149.99Precision suspension tuning demands fork springs that deliver consistent, predictable performance lap after lap. The RACE TECH 0.44 kg/mm springs provide the stiffness needed for aggressive riding while maintaining the lightweight construction critical...FRSP434944- SKU:
- FRSP434944
- Availability:
- Ships Same Business Day
- Weight:
- 2.31 LBS
- LENGTH IMPERIAL:
- 19.41'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 42.70 MM
- SPRING RATE IMPERIAL:
- 24.60 LB/IN
- PRODUCT NAME:
- SPRING KIT
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
RACE TECH Fork Springs - 0.42 kg/mm FRSP 434942
RACE TECH
$149.99Precision suspension tuning demands springs that deliver consistent performance lap after lap. The RACE TECH Fork Springs offer a 0.42 kg/mm rate with exceptional stiffness-to-mass efficiency, ensuring responsive handling without adding unnecessary...FRSP434942- SKU:
- FRSP434942
- Availability:
- Ships Same Business Day
- Weight:
- 2.38 LBS
- LENGTH IMPERIAL:
- 19.41'
- PRODUCT NAME:
- SPRING KIT
- OUTSIDE DIAMETER METRIC:
- 42.70 MM
- SPRING RATE IMPERIAL:
- 23.50 LB/IN
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$149.99 -
RACE TECH Fork Springs - 0.38 kg/mm FRSP 434938
RACE TECH
$149.99Precision fork tuning demands springs that deliver consistent performance lap after lap. The RACE TECH 0.38 kg/mm fork springs combine a high stiffness-to-mass ratio with shot-peened, heat-treated chrome silicon steel to give you predictable, reliable...FRSP434938- SKU:
- FRSP434938
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- OUTSIDE DIAMETER METRIC:
- 42.70 MM
- SPRING RATE IMPERIAL:
- 21.30 LB/IN
- LENGTH IMPERIAL:
- 19.41'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
$149.99 -
RACE TECH Fork Springs - 0.39 kg/mm FRSP 414839
RACE TECH
$149.99Precision fork tuning demands springs with predictable, consistent rates—and that's exactly what RACE TECH delivers. These 0.39 kg/mm springs offer the stiffness-to-mass ratio serious riders need for responsive front-end control without sacrificing bump...FRSP414839- SKU:
- FRSP414839
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- LENGTH IMPERIAL:
- 18.94'
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
- SPRING RATE IMPERIAL:
- 21.80 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$149.99 -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 414746
RACE TECH
$149.99Precision fork tuning demands springs that deliver consistent performance lap after lap without compromise. The RACE TECH 0.46 kg/mm fork springs combine shot-peened chrome silicon steel with heat treatment to achieve a stiffness-to-mass ratio that...FRSP414746- SKU:
- FRSP414746
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- LENGTH IMPERIAL:
- 18.54'
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- UNITS:
- PAIR
$149.99 -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 414646
RACE TECH
$149.99Precision fork performance demands springs that deliver consistent damping characteristics without adding unnecessary weight to your front end. RACE TECH's 0.46 kg/mm fork springs are engineered for riders who refuse to compromise on...FRSP414646- SKU:
- FRSP414646
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 18.19'
$149.99 -
RACE TECH Fork Springs - 0.48 kg/mm FRSP 395148
RACE TECH
$149.99Precision fork tuning demands springs engineered to exact specifications, and RACE TECH delivers with shot-peened, heat-treated chrome silicon steel that maintains consistent performance lap after lap. At 0.48 kg/mm, this spring rate provides the...FRSP395148- SKU:
- FRSP395148
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- PRODUCT NAME:
- SPRING KIT
- LENGTH IMPERIAL:
- 20.16'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
$149.99 -
RACE TECH Fork Springs - 0.26 kg/mm FRSP 243826
RACE TECH
$149.99If you're running a fork setup that demands precision damping characteristics, fork spring rate accuracy directly impacts your suspension's ability to maintain consistent bottoming resistance and maintain chassis geometry through load transitions. RACE...FRSP243826- SKU:
- FRSP243826
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- LENGTH IMPERIAL:
- 14.84'
- OUTSIDE DIAMETER METRIC:
- 24.30 MM
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 14.60 LB/IN
- RIDING STYLE:
- OFF-ROAD
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
RACE TECH Gold Valve Fork Kit FMGV 2820
RACE TECH
$199.99If you're running a front cartridge fork, your suspension's performance is limited by factory valve design. The RACE TECH Gold Valve Fork Kit FMGV 2820 replaces restrictive OEM pistons with dual-port G2-R Gold Valves that triple flow area, giving you...FMGV2820- SKU:
- FMGV2820
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MODEL:
- GOLD VALVE
- OUTSIDE DIAMETER IMPERIAL:
- 1.10'
- COLOR/FINISH:
- GOLD
- UNITS:
- KIT
- PRODUCT NAME:
- FORK KIT
- RIDING STYLE:
- STREET
- TYPE:
- STANDARD
$199.99 -
RACE TECH Gold Valve Fork Kit FMGV 2530
RACE TECH
$199.99Factory fork valving limits your suspension's potential for customization and responsive handling. The RACE TECH Gold Valve Fork Kit FMGV 2530 replaces restrictive OEM pistons with dual-port G2-R Gold Valves, giving you precise control over compression...FMGV2530- SKU:
- FMGV2530
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- MODEL:
- GOLD VALVE
- COLOR/FINISH:
- GOLD
- UNITS:
- KIT
- OUTSIDE DIAMETER IMPERIAL:
- 0.98'
- PRODUCT NAME:
- FORK KIT
- RIDING STYLE:
- STREET
- TYPE:
- STANDARD
$199.99 -
RACE TECH Gold Valve Fork Kit FMGV 2520
RACE TECH
$199.99Front fork performance is only as good as your valving setup, and OEM cartridge forks often leave control and responsiveness on the table. The RACE TECH Gold Valve Fork Kit FMGV 2520 replaces restrictive factory pistons with dual-port G2-R Gold Valves...FMGV2520- SKU:
- FMGV2520
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- GOLD
- OUTSIDE DIAMETER IMPERIAL:
- 0.98'
- PRODUCT NAME:
- FORK KIT
- TYPE:
- STANDARD
- UNITS:
- KIT
- MODEL:
- GOLD VALVE
- RIDING STYLE:
- STREET
$199.99
