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
-
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-S18-008
PIVOT WORKS
$102.23Fork seal degradation compromises suspension responsiveness and invites contamination into your fork internals—a scenario that costs far more to repair than preventative maintenance. This complete PIVOT WORKS kit eliminates guesswork by bundling...04070284- SKU:
- 04070284
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$102.23 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-Y11-008
PIVOT WORKS
$102.23Fork seals and bushings wear down from regular riding and racing, leading to oil leakage, poor damping, and compromised suspension performance. This complete kit gives you everything needed to restore your fork to factory specifications without multiple...04070287- SKU:
- 04070287
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$102.23 -
PIVOT WORKS Fork Seal Kit - 48 mm ID x 58 mm OD PWFSK-Z009
PIVOT WORKS
$60.74Fork seals degrade over time from heat, pressure, and contamination—allowing oil to weep past the seals and compromising suspension performance. This PIVOT WORKS kit delivers OEM-equivalent seals at a fraction of a full rebuild cost, making it ideal for...04070288- SKU:
- 04070288
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INSIDE DIAMETER METRIC:
- 48.00 MM
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$60.74 -
PIVOT WORKS Fork Seal Kit - 48 mm ID x 58 mm OD PWFSK-Z011
PIVOT WORKS
$60.74Fork seals degrade over time, allowing oil to weep onto your brake rotors and compromising suspension performance. This PIVOT WORKS kit gives you a cost-effective way to restore your fork's integrity without committing to a full rebuild. Get your...04070290- SKU:
- 04070290
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- INSIDE DIAMETER METRIC:
- 48.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
$60.74 -
PIVOT WORKS Fork Seal Kit - 37 mm ID x 50 mm OD PWFSK-Z008
PIVOT WORKS
$61.37Leaking fork seals compromise handling precision and can lead to costly suspension damage if left unaddressed. This PIVOT WORKS kit delivers OEM-quality seals at a fraction of rebuild kit pricing, making it the smart choice for riders who want to restore...04070183- SKU:
- 04070183
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 50.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER METRIC:
- 37.00 MM
$61.37 -
PIVOT WORKS Steering Stem Bearing Kit PWSSK-K02-021
PIVOT WORKS
$78.60Worn or corroded steering stem bearings directly compromise your bike's handling precision and introduce dangerous play in your front end. The PIVOT WORKS Steering Stem Bearing Kit PWSSK-K02-021 restores OEM-quality steering response, eliminating the...SSK02021- SKU:
- SSK02021
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- STEERING STEM BEARING
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$78.60 -
RACE TECH Fork Springs - 0.40 kg/mm FRSP 444540
RACE TECH
$149.99Fork springs are critical to suspension performance, directly affecting your bike's ability to absorb impacts, maintain chassis geometry, and deliver consistent handling lap after lap. The RACE TECH 0.40 kg/mm spring delivers a high stiffness-to-mass...04050148- SKU:
- 04050148
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- PRODUCT NAME:
- SPRING KIT
- LENGTH IMPERIAL:
- 17.91'
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 22.40 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
$149.99 -
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
$149.99 -
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
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
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
