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
-
MOOSE RACING Fork Seal Kit - 43 mm 56-135
MOOSE RACING
$39.95Seal profile is engineered to create equal pressure in each seal lip; equalized seal pressure creates less drag and longer seal life, Patented MAX-LIFE has a coefficient of friction up to 3 times less than the OEM seal material, Triple-lip seal design,...04070177- SKU:
- 04070177
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- INSIDE DIAMETER METRIC:
- 43.00 MM
- OUTSIDE DIAMETER METRIC:
- 55.00 MM
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 10.50 MM
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE RACING Fork Seal Kit - 41 mm 56-130
MOOSE RACING
$39.95Seal profile is engineered to create equal pressure in each seal lip; equalized seal pressure creates less drag and longer seal life, Patented MAX-LIFE has a coefficient of friction up to 3 times less than the OEM seal material, Triple-lip seal design,...04070093- SKU:
- 04070093
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- OUTSIDE DIAMETER METRIC:
- 53.20 MM
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 8.00 MM
- INSIDE DIAMETER METRIC:
- 41.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE RACING Fork Seal Kit - 46 mm 56-141
MOOSE RACING
$39.95Seal profile is engineered to create equal pressure in each seal lip; equalized seal pressure creates less drag and longer seal life, Patented MAX-LIFE has a coefficient of friction up to 3 times less than the OEM seal material, Triple-lip seal design,...04070098- SKU:
- 04070098
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- INSIDE DIAMETER METRIC:
- 46.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 9.50 MM
- OUTSIDE DIAMETER METRIC:
- 58.25 MM
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 40.00 mm 38-6047
MOOSE RACING
$50.95Bushings are dyno-tested to 500,000 strokes with less wear than OEM bushings, Kit includes two slider bushings and two leg bushings, Kit includes all copper washers and O-rings, Kit includes two fork seal snap rings04500135- SKU:
- 04500135
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 34.90 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.45'
- MATERIAL:
- PTFE
$50.95Qty in Cart: 0Quantity:Price:$50.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6048
MOOSE RACING
$54.95Bushings are dyno-tested to 500,000 strokes with less wear than OEM bushings, Kit includes two slider bushings and two leg bushings, Kit includes all copper washers and O-rings, Kit includes two fork seal snap rings04500136- SKU:
- 04500136
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.90 MM
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
MOOSE RACING Lower Fork Leg Guard - Left Leg 32-345
MOOSE RACING
$49.95Strong, lightweight, aluminum guard, Made from 6061 T-6 billet aluminum, Complements the new front brake rotor guard, Made in the U.S.A.04060078- SKU:
- 04060078
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- LEFT FORK LEG
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- GUARD
- UNITS:
- EACH
$49.95Qty in Cart: 0Quantity:Price:$49.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6069
MOOSE RACING
$73.95Bushings are dyno-tested to 500,000 strokes with less wear than OEM bushings, Kit includes two slider bushings and two leg bushings, Kit includes all copper washers and O-rings, Kit includes two fork seal snap rings04500150- SKU:
- 04500150
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MATERIAL:
- PTFE
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.90 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- PRODUCT NAME:
- BUSHING KIT
$73.95Qty in Cart: 0Quantity:Price:$73.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 48.80 mm 38-6082
MOOSE RACING
$54.95Bushings are dyno-tested to 500,000 strokes with less wear than OEM bushings, Kit includes two slider bushings and two leg bushings, Kit includes all copper washers and O-rings, Kit includes two fork seal snap rings04500235- SKU:
- 04500235
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- INNER BUSHING INSIDE DIAMETER METRIC:
- 48.1 MM
- PRODUCT NAME:
- BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.89'
- INNER BUSHING WIDTH IMPERIAL:
- 0.47'
- MATERIAL:
- PTFE
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6026
MOOSE RACING
$56.95Bushings are dyno-tested to 500,000 strokes with less wear than OEM bushings, Kit includes two slider bushings and two leg bushings, Kit includes all copper washers and O-rings, Kit includes two fork seal snap rings04500269- SKU:
- 04500269
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.70 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.58'
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
$56.95Qty in Cart: 0Quantity:Price:$56.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 45.00 mm 38-6018
MOOSE RACING
$55.95Bushings are dyno-tested to 500,000 strokes with less wear than OEM bushings, Kit includes two slider bushings and two leg bushings, Kit includes all copper washers and O-rings, Kit includes two fork seal snap rings04500270- SKU:
- 04500270
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.64'
- INNER BUSHING INSIDE DIAMETER METRIC:
- 39.70 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
$55.95Qty in Cart: 0Quantity:Price:$55.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6057
MOOSE RACING
$54.95Bushings are dyno-tested to 500,000 strokes with less wear than OEM bushings, Kit includes two slider bushings and two leg bushings, Kit includes all copper washers and O-rings, Kit includes two fork seal snap rings04500271- SKU:
- 04500271
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.70 MM
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
MOOSE RACING Steering Stem Bearing Kit 22-1040
MOOSE RACING
$60.95Designed as a drop-in replacement to upgrade OEM ball-type bearings to taper bearings, or a high-quality replacement if your bike comes with taper bearings stock, Tapered roller bearings provide decreased maintenance along with less wear, smoother...04100038- SKU:
- 04100038
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MODEL:
- TAPERED ROLLER
- PRODUCT NAME:
- BEARING
- TYPE:
- STEERING STEM
$60.95Qty in Cart: 0Quantity:Price:$60.95Subtotal: -
MOOSE RACING Steering Stem Bearing Kit - RMz450 22-1048
MOOSE RACING
$67.95Designed as a drop-in replacement to upgrade OEM ball-type bearings to taper bearings, or a high-quality replacement if your bike comes with taper bearings stock, Tapered roller bearings provide decreased maintenance along with less wear, smoother...04100056- SKU:
- 04100056
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STEERING STEM
- UNITS:
- KIT
- MODEL:
- TAPERED ROLLER
$67.95Qty in Cart: 0Quantity:Price:$67.95Subtotal: -
KYB Fork Bleed Bolt O-Ring 110100000101
KYB
$0.95Front fork bleed bolt o-ring04130031- SKU:
- 04130031
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- O-RING
$0.95Qty in Cart: 0Quantity:Price:$0.95Subtotal: -
SCHAMPA & DIRT SKINS 7.5" Inverted Dirt Skins¢â€žÂ¢ Fork Covers - 2 mm Neoprene - Blue/White DSFRKSEAL12-2
SCHAMPA & DIRT SKINS
$29.99Protect expensive suspension components from rocks, mud, sand and all other types of roost, Made of flexible 2 mm neoprene and held on by industrial-grade hook-and-loop material, Easy to install, Seal skins 1" longer than the original version, For 125cc...04060019- SKU:
- 04060019
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- TYPE:
- INVERTED
- MATERIAL:
- NEOPRENE
- MODEL:
- FORK SEAL SKINS
- OVERALL LENGTH IMPERIAL:
- 7.50'
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLUE
- UNITS:
- PAIR
- PRODUCT NAME:
- DIRT SKINS
$29.99Qty in Cart: 0Quantity:Price:$29.99Subtotal: -
SCHAMPA & DIRT SKINS 7.5" Standard Dirt Skins¢â€žÂ¢ Fork Covers - 2 mm Neoprene - Black/White DSFRKSEAL11-1
SCHAMPA & DIRT SKINS
$27.99Protect expensive suspension components from rocks, mud, sand and all other types of roost, Made of flexible 2 mm neoprene and held on by industrial-grade hook-and-loop material, Easy to install, Seal skins 1" longer than the original version, For 125cc...04060022- SKU:
- 04060022
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- NEOPRENE
- OVERALL LENGTH IMPERIAL:
- 7.50'
- TYPE:
- STANDARD
- PRODUCT NAME:
- DIRT SKINS
- MODEL:
- FORK SEAL SKINS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$27.99Qty in Cart: 0Quantity:Price:$27.99Subtotal: -
SCHAMPA & DIRT SKINS 7.5" Standard Dirt Skins¢â€žÂ¢ Fork Covers - 2 mm Neoprene - Red/White DSFRKSEAL11-3
SCHAMPA & DIRT SKINS
$27.99Protect expensive suspension components from rocks, mud, sand and all other types of roost, Made of flexible 2 mm neoprene and held on by industrial-grade hook-and-loop material, Easy to install, Seal skins 1" longer than the original version, For 125cc...04060024- SKU:
- 04060024
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- NEOPRENE
- MODEL:
- FORK SEAL SKINS
- OVERALL LENGTH IMPERIAL:
- 7.50'
- TYPE:
- STANDARD
- PRODUCT NAME:
- DIRT SKINS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$27.99Qty in Cart: 0Quantity:Price:$27.99Subtotal: -
SCHAMPA & DIRT SKINS 12.25" Standard Dirt Skins¢â€žÂ¢ Fork Covers - 2 mm Neoprene - Black/White DSFRKSEAL15-1
SCHAMPA & DIRT SKINS
$39.99Protect expensive suspension components from rocks, mud, sand and all other types of roost, Made of flexible 2 mm neoprene and held on by industrial-grade hook-and-loop material, Easy to install, Seal skins 1" longer than the original version, For 125cc...04060106- SKU:
- 04060106
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- PRODUCT NAME:
- DIRT SKINS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- LONG
- MATERIAL:
- NEOPRENE
- MODEL:
- FORK SEAL SKINS
- COLOR/FINISH:
- BLACK
- OVERALL LENGTH IMPERIAL:
- 12.25'
- UNITS:
- PAIR
$39.99Qty in Cart: 0Quantity:Price:$39.99Subtotal: -
SCHAMPA & DIRT SKINS 7.5" Inverted Dirt Skins¢â€žÂ¢ Fork Covers - 2 mm Neoprene - Black/White DSFRKSEAL12-1
SCHAMPA & DIRT SKINS
$29.99Protect expensive suspension components from rocks, mud, sand and all other types of roost, Made of flexible 2 mm neoprene and held on by industrial-grade hook-and-loop material, Easy to install, Seal skins 1" longer than the original version, For 125cc...04060018- SKU:
- 04060018
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- INVERTED
- PRODUCT NAME:
- DIRT SKINS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- NEOPRENE
- OVERALL LENGTH IMPERIAL:
- 7.50'
- UNITS:
- PAIR
- MODEL:
- FORK SEAL SKINS
- RIDING STYLE:
- OFF-ROAD
$29.99Qty in Cart: 0Quantity:Price:$29.99Subtotal: -
KYB Front Fork Springs - 0.27 kg/mm - 36 mm/360 mm 110053600102
KYB
$63.95Specially designed for the excessive loads that motocross bikes endure, Each spring is made to the tightest tolerances to ensure consistent rates, precise fit and durability, Imported from Japan04050215- SKU:
- 04050215
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- LENGTH IMPERIAL:
- 14.17'
- PRODUCT NAME:
- SPRING
- FOR FORK TUBE DIAMETER IMPERIAL:
- 1.42'
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 15.10 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
$63.95Qty in Cart: 0Quantity:Price:$63.95Subtotal:
