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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RACE TECH Super Slick Inner Fork Bushing - 47 mm X 20 mm W x 1 mm T FMBI 47201 P
RACE TECH
$31.95Revolutionary low-friction design ensures high-quality suspension performance, Constructed of FEP and tin composite, these PTFE-coated bushings have the lowest friction properties available, Inner bushings mount on the inner (chrome) fork tube and have...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 - 0.32 kg/mm FRSP 324532
RACE TECH
$149.99High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steel, Accurate rates to within 2%, Accuracy and performanceFRSP324532- SKU:
- FRSP324532
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- OUTSIDE DIAMETER METRIC:
- 32.60 MM
- PRODUCT NAME:
- SPRING KIT
- LENGTH IMPERIAL:
- 17.56'
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 17.90 LB/IN
- TYPE:
- FORK
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 364746
RACE TECH
$149.99High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steel, Accurate rates to within 2%, Accuracy and performanceFRSP364746- 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
$149.99High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steel, Accurate rates to within 2%, Accuracy and performanceFRSP375046- 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
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
RACE TECH Fork Springs - 0.50 kg/mm FRSP 395150
RACE TECH
$149.99High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steel, Accurate rates to within 2%, Accuracy and performanceFRSP395150- 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 Fork Springs - 0.47 kg/mm FRSP 405147
RACE TECH
$149.99High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steel, Accurate rates to within 2%, Accuracy and performanceFRSP405147- SKU:
- FRSP405147
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- LENGTH IMPERIAL:
- 20.00'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 39.50 MM
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 26.30 LB/IN
$149.99 -
RACE TECH Fork Springs - 0.49 kg/mm FRSP 405149
RACE TECH
$149.99High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steel, Accurate rates to within 2%, Accuracy and performanceFRSP405149- SKU:
- FRSP405149
- Availability:
- Ships Same Business Day
- Weight:
- 3.12 LBS
- LENGTH IMPERIAL:
- 20.00'
- OUTSIDE DIAMETER METRIC:
- 39.50 MM
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 27.40 LB/IN
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
$149.99 -
RACE TECH Fork Springs - 0.42 kg/mm FRSP 414642
RACE TECH
$149.99High stiffness-to-mass ratio, shot-peened, heat-treated and preset chrome silicon steel, Accurate rates to within 2%, Accuracy and performanceFRSP414642- SKU:
- FRSP414642
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
- SPRING RATE IMPERIAL:
- 23.50 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 18.19'
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
$149.99 -
FACTORY CONNECTION Front Fork Springs - 0.45 kg/mm LAU-045
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.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 Front Fork Springs - 0.47 kg/mm LAU-047
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.LAU047- SKU:
- LAU047
- Availability:
- Ships Same Business Day
- Weight:
- 2.69 LBS
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- SPRING RATE IMPERIAL:
- 26.30 LB/IN
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.49 kg/mm LAU-049
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.LAU049- SKU:
- LAU049
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 27.40 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.46 kg/mm LSA-046
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.LSA046- SKU:
- LSA046
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- UNITS:
- PAIR
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.48 kg/mm LSA-048
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.LSA048- SKU:
- LSA048
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.46 kg/mm LSB-046
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.LSB046- SKU:
- LSB046
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.33 kg/mm IIU-033
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.IIU033- SKU:
- IIU033
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- FORK
- SPRING RATE IMPERIAL:
- 18.50 LB/IN
$159.95 -
FACTORY CONNECTION Fork Seal Kit for KYB Forks - Fits all 46 mm Kayaba forks FCF-46U
FACTORY CONNECTION
$39.95Updated fork seal kit uses a thicker fork seal and thinner back washer with more pliable rubber, Improves fork seal lip to fork tube fit and increases seal lifeFCF46U- SKU:
- FCF46U
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- INSIDE DIAMETER METRIC:
- 44.47 MM
- MATERIAL:
- RUBBER
- OUTSIDE DIAMETER METRIC:
- 58.10 MM
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- OFF-ROAD
- THICKNESS IMPERIAL:
- 0.45'
- THICKNESS METRIC:
- 11.50 MM
- UNITS:
- KIT
$39.95 -
FACTORY CONNECTION High Performance Guide Bushing Set DUGUIDESET48WP
FACTORY CONNECTION
$44.00Helps reduce stiction in forks and provides smoother fork action, Has a lower coefficient friction rating04500052- SKU:
- 04500052
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MOUNTING POSITION:
- OUTER
- UNITS:
- SET
- MOUNTING POSITION:
- INNER
- PRODUCT NAME:
- GUIDE BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$44.00 -
FACTORY CONNECTION High Performance Piston Bushing Set FBPISTONSET48WP
FACTORY CONNECTION
$44.00Helps reduce stiction in forks and provides smoother fork action, Has a lower coefficient friction rating04500053- SKU:
- 04500053
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MOUNTING POSITION:
- OUTER
- UNITS:
- SET
- PRODUCT NAME:
- PISTON BUSHING KIT
- MOUNTING POSITION:
- INNER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$44.00 -
FACTORY CONNECTION Front Fork Springs - 0.27 kg/mm IIU-027
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050161- SKU:
- 04050161
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 15.10 LB/IN
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.39 kg/mm LRA-039
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050163- SKU:
- 04050163
- Availability:
- Ships Same Business Day
- Weight:
- 2.66 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- SPRING RATE IMPERIAL:
- 21.80 LB/IN
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal:
