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
-
RACE TECH Fork Springs - 0.42 kg/mm FRSP 444542
RACE TECH
$149.99Precision fork damping is the foundation of responsive, predictable handling—and these RACE TECH springs deliver that consistency lap after lap. The 0.42 kg/mm rate offers the stiffness needed for aggressive cornering without sacrificing compliance over...04050149- SKU:
- 04050149
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- LENGTH IMPERIAL:
- 17.91'
- SPRING RATE IMPERIAL:
- 23.50 LB/IN
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$149.99 -
RACE TECH Fork Springs - 0.48 kg/mm FRSP 444548
RACE TECH
$149.99Precision fork suspension starts with springs that deliver consistent rates across every compression cycle—and Race Tech's 0.48 kg/mm springs are engineered to eliminate the guesswork. Shot-peened and heat-treated chrome silicon steel ensures your front...04050152- SKU:
- 04050152
- Availability:
- Ships Same Business Day
- Weight:
- 2.99 LBS
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
- LENGTH IMPERIAL:
- 17.91'
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
$149.99 -
PIVOT WORKS Fork Seal Kit - 48 mm ID x 58 mm OD PWFSK-Z012
PIVOT WORKS
$40.59Fork seals degrade over time, allowing oil to leak and air to enter your suspension system—both compromises to handling precision and damper performance. This PIVOT WORKS seal kit delivers OEM-quality replacements at a fraction of a full rebuild cost,...04070302- SKU:
- 04070302
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INSIDE DIAMETER METRIC:
- 48.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$40.59 -
UFO Fork Cover - White - KX80 - '98 KA03711280
UFO
$29.95Keep your KX80's front end looking sharp while protecting critical fork components from dirt, debris, and UV damage. These OEM-spec fork covers mount directly to stock attachment points without modification, making them a straightforward upgrade for...1270429- SKU:
- 1270429
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MATERIAL:
- PLASTIC
- BASE COLOR:
- WHITE
- PRODUCT NAME:
- PROTECTORS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK SLIDER
- COLOR/FINISH:
- WHITE
- UNITS:
- PAIR
$29.95 -
UFO Fork Cover - White YA03803046
UFO
$29.95Fork tube protectors aren't just cosmetic—they shield your suspension components from mud, rocks, and debris that accelerate wear on seals and bushings. A quality cover extends the service life of your forks while maintaining a clean, purposeful...1271629- SKU:
- 1271629
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- WHITE
- UNITS:
- PAIR
- BASE COLOR:
- WHITE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK TUBE
$29.95 -
RACE TECH Fork Springs - 0.27 kg/mm FRSP 314227
RACE TECH
$149.99Precision fork suspension tuning demands springs engineered to exact specifications—and these Race Tech units deliver rate accuracy within 2% to give you consistent, predictable handling across every lap. Built from heat-treated chrome silicon steel with...FRSP314227- SKU:
- FRSP314227
- Availability:
- Ships Same Business Day
- Weight:
- 1.84 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- LENGTH IMPERIAL:
- 16.61'
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 15.10 LB/IN
- OUTSIDE DIAMETER METRIC:
- 31.20 MM
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
RACE TECH Fork Springs - 0.33 kg/mm FRSP 314233
RACE TECH
$149.99Precision fork springs are non-negotiable for serious track performance—they directly control how your front end responds under braking, cornering, and acceleration. RACE TECH's 0.33 kg/mm springs deliver the stiffness needed for consistent, predictable...FRSP314233- SKU:
- FRSP314233
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- OUTSIDE DIAMETER METRIC:
- 31.20 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 18.50 LB/IN
- LENGTH IMPERIAL:
- 16.61'
- PRODUCT NAME:
- SPRING KIT
$149.99 -
RACE TECH Fork Springs - 0.42 kg/mm FRSP 364742
RACE TECH
$149.99If you're chasing consistency lap after lap, fork spring rate is non-negotiable—and the 0.42 kg/mm RACE TECH springs deliver the precision your suspension demands. Shot-peened chrome silicon steel provides the stiffness-to-mass ratio needed for...FRSP364742- SKU:
- FRSP364742
- Availability:
- Ships Same Business Day
- Weight:
- 2.63 LBS
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 23.50 LB/IN
- LENGTH IMPERIAL:
- 18.58'
- OUTSIDE DIAMETER METRIC:
- 35.80 MM
$149.99 -
RACE TECH Billet Dual-Chamber Fork Reservoir Piston FKTC RP3601P
RACE TECH
$129.99Stock plastic pistons in KYB fork assemblies are prone to cracking under sustained track use, compromising damping performance and forcing costly fork rebuilds. The RACE TECH billet aluminum replacement eliminates this weakness entirely, delivering the...04500341- SKU:
- 04500341
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- COLOR/FINISH:
- RED
- TYPE:
- FORK RESERVOIR
- MODEL:
- DUAL-CHAMBER
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$129.99 -
RACE TECH Gold Valve Cartridge Fork Emulators for Damping Rod Forks - 43 mm FEGV 4301
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 43 mm forks into a tunable suspension platform that rivals purpose-built...FEGV4301- SKU:
- FEGV4301
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- OUTSIDE DIAMETER IMPERIAL:
- 1.69'
- PRODUCT NAME:
- CARTRIDGE EMULATOR
- MODEL:
- GOLD VALVE
- TYPE:
- FORK
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$199.99 -
RACE TECH Gold Valve Cartridge Fork Emulators for Damping Rod Forks - 43 mm FEGV 4321
RACE TECH
$209.99Damping rod forks limit your suspension's ability to respond to trail feedback and rider input, forcing you to accept their fixed behavior or invest in a complete fork overhaul. The RACE TECH Gold Valve Cartridge Fork Emulators transform your existing...FEGV4321- SKU:
- FEGV4321
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- TYPE:
- FORK
- UNITS:
- KIT
- COLOR/FINISH:
- GOLD
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- GOLD VALVE
- PRODUCT NAME:
- CARTRIDGE EMULATOR
- OUTSIDE DIAMETER IMPERIAL:
- 1.69'
$209.99 -
FACTORY CONNECTION Front Fork Springs - 0.52 kg/mm LRI-052
FACTORY CONNECTION
$159.95Fork spring rates directly impact your suspension's ability to absorb impacts, maintain chassis geometry, and deliver consistent handling lap after lap. A properly matched spring rate prevents excessive compression under load while resisting the fatigue...04050339- SKU:
- 04050339
- Availability:
- Ships Same Business Day
- Weight:
- 3.21 LBS
- TYPE:
- FORK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 29.10 LB/IN
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.51 kg/mm LSU-051
FACTORY CONNECTION
$159.95Factory Connection front fork springs deliver the consistent, predictable performance your suspension demands—whether you're pushing hard on the track or dialing in your bike's handling on technical terrain. Precision manufacturing and heat treatment...04050511- SKU:
- 04050511
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 28.60 LB/IN
$159.95 -
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
$34.99Qty in Cart: 0Quantity:Price:$34.99Subtotal:
