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 - 48 mm 56-167
MOOSE RACING
$40.95Fork seals wear faster than almost any other suspension component, and worn seals compromise handling precision and invite hydraulic fluid leakage. The MOOSE RACING 48mm Fork Seal Kit extends seal life to 3–4 times longer than OEM units through advanced...04070358- SKU:
- 04070358
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INSIDE DIAMETER METRIC:
- 48.00 MM
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 9.00 MM
$40.95 -
MOOSE RACING Fork Seal Kit - 38 mm 56-124
MOOSE RACING
$37.95Fork seals degrade under constant pressure and heat cycling, causing oil leakage, loss of suspension performance, and potential fork damage. The MOOSE RACING 38mm Fork Seal Kit addresses this directly with engineered seal geometry and advanced materials...04070135- SKU:
- 04070135
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- INSIDE DIAMETER METRIC:
- 38.00 MM
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 10.50 MM
- PRODUCT NAME:
- FORK SEAL KIT
- OUTSIDE DIAMETER METRIC:
- 50.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$37.95 -
MOOSE RACING Fork Protector Ring C23-5430B
MOOSE RACING
$23.95Fork protectors are essential for off-road and racing applications where contact with obstacles, terrain, or other competitors is inevitable. This MOOSE RACING fork protector ring shields your suspension from impact damage while maintaining clean...04120525- SKU:
- 04120525
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- PLASTIC
- UNITS:
- PAIR
- PRODUCT NAME:
- PROTECTOR
- TYPE:
- FORK
$23.95 -
MOOSE RACING Fork Seal Kit - 43 mm 56-133
MOOSE RACING
$37.95Fork seals are a wear item that directly impacts your suspension's performance and reliability. When OEM seals degrade, you lose oil pressure, experience increased friction, and risk contamination of your fork oil. The MOOSE RACING 43 mm Fork Seal Kit...04070094- SKU:
- 04070094
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- INSIDE DIAMETER METRIC:
- 43.00 MM
- OUTSIDE DIAMETER METRIC:
- 54.20 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
- THICKNESS METRIC:
- 11.00 MM
$37.95 -
MOOSE RACING Fork Seal Kit - 43 mm 56-138
MOOSE RACING
$39.95Fork seals wear faster than almost any other suspension component, and worn seals mean oil leakage, loss of damping control, and costly fork rebuilds. The MOOSE RACING Fork Seal Kit addresses this directly with a patented seal material and triple-lip...04070096- SKU:
- 04070096
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- FORK SEAL KIT
- INSIDE DIAMETER METRIC:
- 43.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 9.50 MM
- OUTSIDE DIAMETER METRIC:
- 55.35 MM
$39.95 -
MOOSE RACING Fork Seal Kit - 46 mm 56-140
MOOSE RACING
$39.95Fork seals wear faster than most riders expect—especially under aggressive riding or track conditions—leading to oil leakage, reduced damping performance, and potential fork damage. The MOOSE RACING Fork Seal Kit uses a patented MAX-LIFE compound with...04070097- SKU:
- 04070097
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- THICKNESS METRIC:
- 10.00 MM
- INSIDE DIAMETER METRIC:
- 46.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 58.20 MM
- PRODUCT NAME:
- FORK SEAL KIT
$39.95 -
MOOSE RACING Fork Seal Kit - 47 mm 56-142
MOOSE RACING
$37.95Fork seals are a critical wear item that directly impacts suspension performance and handling precision. The MOOSE RACING 47mm Fork Seal Kit addresses the primary failure point in most OEM fork designs—uneven seal pressure and excessive friction—by...04070099- SKU:
- 04070099
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- OUTSIDE DIAMETER METRIC:
- 58.30 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 10.00 MM
- INSIDE DIAMETER METRIC:
- 47.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
$37.95 -
MOOSE RACING Fork Bushing Kit - 51.00 mm 38-6015
MOOSE RACING
$67.95Fork bushings are critical wear items that directly impact suspension responsiveness, damping consistency, and overall ride quality. OEM bushings degrade under racing loads, introducing play and unpredictability into your suspension geometry—exactly what...04500119- SKU:
- 04500119
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- INNER BUSHING INSIDE DIAMETER METRIC:
- 45.70 MM
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.88'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- PRODUCT NAME:
- BUSHING KIT
$67.95 -
MOOSE RACING Fork Bushing Kit - 51.00 mm 38-6020
MOOSE RACING
$44.95Fork bushings are critical wear components that directly impact steering responsiveness, damping consistency, and overall suspension performance. OEM bushings degrade quickly under demanding riding conditions, leading to sloppy handling and premature...04500121- SKU:
- 04500121
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- INNER BUSHING INSIDE DIAMETER METRIC:
- 45.70 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.88'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$44.95 -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6039
MOOSE RACING
$46.95Fork bushings are critical wear items that directly impact your suspension's responsiveness, stability, and longevity. OEM bushings degrade under the repeated shock cycles of aggressive riding or racing, leading to sloppy fork action and compromised...04500129- SKU:
- 04500129
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.90 MM
- UNITS:
- KIT
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
$46.95 -
MOOSE RACING Lower Fork Leg Guard - Left Leg 32-346
MOOSE RACING
$49.95Lower fork leg guards are essential protection for serious riders who demand durability without added weight. The MOOSE RACING Lower Fork Leg Guard shields your suspension from trail debris, rocks, and impacts that can compromise fork integrity and...04060080- SKU:
- 04060080
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- GUARD
- UNITS:
- EACH
- COLOR/FINISH:
- POLISHED
- TYPE:
- LEFT FORK LEG
- RIDING STYLE:
- OFF-ROAD
$49.95 -
MOOSE RACING Fork Bushing Kit - 52.00 mm 38-6066
MOOSE RACING
$56.95Fork bushings endure thousands of compression cycles, and worn bushings compromise suspension feel, introduce play in your front end, and accelerate seal degradation. The MOOSE RACING Fork Bushing Kit restores precision handling and extends the service...04500147- SKU:
- 04500147
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.92'
- PRODUCT NAME:
- BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- INNER BUSHING INSIDE DIAMETER METRIC:
- 46.80 MM
- MATERIAL:
- PTFE
$56.95 -
MOOSE RACING Fork Bushing Kit - 52.00 mm 38-6067
MOOSE RACING
$55.95Fork bushings are critical wear components that directly impact suspension responsiveness and fork stability under braking and cornering. OEM bushings degrade quickly under racing conditions, leading to sloppy feel and increased maintenance costs. The...04500148- SKU:
- 04500148
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.92'
- UNITS:
- KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 46.80 MM
- PRODUCT NAME:
- BUSHING KIT
$55.95Qty in Cart: 0Quantity:Price:$55.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 52.00 mm 38-6068
MOOSE RACING
$67.95Fork bushings wear faster than most riders realize, causing sloppy handling and reduced suspension responsiveness that compromises both performance and safety. The MOOSE RACING Fork Bushing Kit restores your suspension to like-new precision with...04500149- SKU:
- 04500149
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.92'
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 46.80 MM
- PRODUCT NAME:
- BUSHING KIT
$67.95 -
MOOSE RACING Fork Bushing Kit - 45.00 mm 38-6095
MOOSE RACING
$50.95Fork bushings are critical wear items that directly impact your suspension's responsiveness, stability, and longevity. Stock bushings degrade under heavy use, leading to sloppy feel, increased friction, and premature seal failure. The MOOSE RACING Fork...04500272- SKU:
- 04500272
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- MATERIAL:
- PTFE
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 38.80 MM
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.61'
$50.95 -
MOOSE RACING Fork Bushing Kit - 49.00 mm 38-6006
MOOSE RACING
$55.95Fork bushings wear faster than you'd expect, especially under aggressive riding or racing conditions—and worn bushings compromise suspension geometry, steering response, and overall handling precision. The MOOSE RACING Fork Bushing Kit restores your...04500274- SKU:
- 04500274
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- UNITS:
- KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 43.70 MM
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.84'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
$55.95 -
MOOSE RACING Steering Stem Bearing Kit 22-1047
MOOSE RACING
$38.95Factory ball-type bearings wear quickly under aggressive riding and frequent use, leading to sloppy steering response and premature replacement cycles. Tapered roller bearings eliminate these headaches by reducing maintenance intervals, cutting wear...04100039- SKU:
- 04100039
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MODEL:
- TAPERED ROLLER
- PRODUCT NAME:
- BEARING
- TYPE:
- STEERING STEM
$38.95 -
MOOSE RACING Steering Stem Bearing Kit 22-1032-M
MOOSE RACING
$31.95Worn steering stem bearings introduce play, friction, and unpredictable handling—issues that compound quickly under racing conditions or aggressive trail use. The MOOSE RACING Steering Stem Bearing Kit upgrades your bike's front-end geometry with...04100078- SKU:
- 04100078
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- MODEL:
- TAPERED ROLLER
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STEERING STEM
- UNITS:
- KIT
$31.95 -
MOOSE RACING Steering Stem Bearing Kit 22-1058
MOOSE RACING
$62.95Your steering stem is the critical interface between you and the road—and OEM ball bearings wear down fast under aggressive riding, causing play, resistance, and premature replacement cycles. The MOOSE RACING Steering Stem Bearing Kit 22-1058 upgrades...04100106- SKU:
- 04100106
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- MODEL:
- TAPERED ROLLER
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STEERING STEM
- UNITS:
- KIT
$62.95 -
MOOSE RACING Fork Bushing Kit - 52.00 mm 38-6108
MOOSE RACING
$50.95Fork bushings wear faster than almost any other suspension component, yet most riders don't replace them until performance noticeably degrades. The MOOSE RACING Fork Bushing Kit restores the precise clearances your forks need to perform consistently,...04500316- SKU:
- 04500316
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- INNER BUSHING INSIDE DIAMETER METRIC:
- 46.80 MM
- PRODUCT NAME:
- BUSHING KIT
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.92'
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
$50.95
