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
$39.95Fork seals degrade from constant pressure cycling and contamination—when they fail, you're facing oil leakage, poor suspension response, and expensive fork damage. The MOOSE RACING 43mm Fork Seal Kit eliminates these problems with patented MAX-LIFE...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
$39.95 -
MOOSE RACING Fork Seal Kit - 41 mm 56-130
MOOSE RACING
$39.95Fork seals wear faster than almost any other suspension component, and worn seals mean oil leakage, reduced damping performance, and costly fork damage. The MOOSE RACING Fork Seal Kit eliminates premature failure with a triple-lip design and proprietary...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
$39.95 -
MOOSE RACING Fork Seal Kit - 46 mm 56-141
MOOSE RACING
$39.95Fork seals degrade with every riding season, compromising suspension performance and inviting hydraulic leaks that damage your forks from the inside out. The MOOSE RACING 46 mm Fork Seal Kit replaces worn seals with engineered MAX-LIFE compound that...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
$39.95 -
MOOSE RACING Fork Bushing Kit - 40.00 mm 38-6047
MOOSE RACING
$50.95Fork bushings wear faster than nearly any other suspension component, causing play, reducing steering precision, and accelerating seal degradation. The MOOSE RACING Fork Bushing Kit 40mm restores OEM geometry and handling characteristics with premium...04500135- 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
$54.95Fork bushings endure thousands of compression cycles, and worn bushings compromise your suspension's responsiveness and increase wear on seals and stanchions. The MOOSE RACING Fork Bushing Kit delivers OEM-quality replacement bushings that outlast stock...04500136- 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
$54.95 -
MOOSE RACING Lower Fork Leg Guard - Left Leg 32-345
MOOSE RACING
$49.95Protect your front suspension from impact damage without adding unnecessary weight to your bike. The MOOSE RACING Lower Fork Leg Guard is engineered from 6061 T-6 billet aluminum to withstand aggressive riding while maintaining the lightweight handling...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
$73.95Fork bushings wear faster than most riders realize, causing sloppy steering response and accelerated seal degradation. The MOOSE RACING Fork Bushing Kit replaces worn components with dyno-tested bushings that outlast OEM parts by a significant margin,...04500150- 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
$73.95 -
MOOSE RACING Fork Bushing Kit - 48.80 mm 38-6082
MOOSE RACING
$54.95Fork bushings are the critical wear points that determine your suspension's responsiveness and longevity. Over time, stock bushings degrade from repetitive compression and extension cycles, causing play in the fork legs and reducing your ability to dial...04500235- 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
$54.95 -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6026
MOOSE RACING
$56.95Fork bushings wear faster than most riders realize, leading to sloppy steering response and premature seal failure. The MOOSE RACING Fork Bushing Kit delivers OEM-quality replacement bushings engineered to outlast stock components, restoring your bike's...04500269- 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
$56.95 -
MOOSE RACING Fork Bushing Kit - 45.00 mm 38-6018
MOOSE RACING
$55.95Fork bushings are critical wear items that directly impact your suspension's responsiveness, damping consistency, and overall ride quality. Over time, OEM bushings compress and wear unevenly, leading to vague handling and increased maintenance costs. The...04500270- 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
$55.95 -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6057
MOOSE RACING
$54.95Fork bushings wear with every compression cycle, and worn bushings translate directly to poor suspension feel, reduced damping control, and accelerated seal degradation. The MOOSE RACING Fork Bushing Kit replaces all four bushings in your fork lowers...04500271- 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
$54.95 -
MOOSE RACING Steering Stem Bearing Kit 22-1040
MOOSE RACING
$60.95Steering precision and reliability are non-negotiable in racing and aggressive riding—worn or inadequate steering bearings compromise both handling feedback and safety. The MOOSE RACING Steering Stem Bearing Kit upgrades your bike from loose,...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
$67.95Worn steering stem bearings create notchy, imprecise handling that compounds under race conditions. The MOOSE RACING Steering Stem Bearing Kit upgrades your RMz450 from ball-type to tapered roller bearings, delivering smoother operation, reduced...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
$0.95A properly sealed front fork bleed bolt is critical for maintaining fork oil integrity and preventing hydraulic leaks that compromise suspension performance. This OEM KYB o-ring ensures a consistent, reliable seal during maintenance and service...04130031- SKU:
- 04130031
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- O-RING
$0.95 -
SCHAMPA & DIRT SKINS 7.5" Inverted Dirt Skins¢â€žÂ¢ Fork Covers - 2 mm Neoprene - Blue/White DSFRKSEAL12-2
SCHAMPA & DIRT SKINS
$29.99Expensive fork seals are vulnerable to the constant barrage of rocks, mud, and sand that come with aggressive riding. The SCHAMPA & DIRT SKINS Inverted Fork Covers act as a physical barrier, extending the life of your suspension components and saving you...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
$27.99Suspension components represent a significant investment in any dirt bike setup, and exposure to roost, rocks, and abrasive terrain accelerates wear and failure. The SCHAMPA & DIRT SKINS Fork Covers seal your forks against the elements with flexible 2 mm...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
$27.99Suspension forks on dirt bikes face constant abuse from flying rocks, mud, and sand—damage that can compromise seal integrity and lead to costly repairs. The SCHAMPA Dirt Skins Fork Covers protect your expensive suspension components with flexible 2 mm...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
$39.99Dirt bikes take a beating—and your fork seals take it hardest. Rocks, mud, and roost work their way into suspension components, causing premature wear and costly repairs. These Dirt Skins fork covers seal out the abuse before it starts, protecting your...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
$29.99Rocks, mud, and roost can shred suspension internals and rack up costly repairs faster than a season ends. These Inverted Dirt Skins seal your fork tubes with flexible neoprene protection, keeping abrasive debris away from expensive seals and components...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
$63.95Motocross demands suspension components that can handle relentless abuse without compromising consistency or feel. KYB's front fork springs are engineered to the exacting standards required by the sport, delivering predictable spring rates through...04050215- 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:
