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 Bushing Kit 38-6154
MOOSE RACING
$47.95Fork bushings are critical wear items that directly impact your suspension's responsiveness and steering precision. Over time, worn bushings introduce play and slop into your fork assembly, degrading handling and increasing component wear. The MOOSE...04500588- SKU:
- 04500588
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
$47.95 -
MOOSE RACING Fork Seal Kit - 43 mm 56-134
MOOSE RACING
$39.95Fork seals are a wear item that directly impacts your suspension's performance and reliability. When OEM seals degrade, they leak oil, compromise damping, and force costly rebuilds. The MOOSE RACING 43mm Fork Seal Kit uses patented MAX-LIFE material with...04070176- SKU:
- 04070176
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- THICKNESS METRIC:
- 9.00 MM
- INSIDE DIAMETER METRIC:
- 43.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 54.30 MM
- RIDING STYLE:
- STREET
$39.95 -
MOOSE RACING Fork Seal Kit - 43 mm 56-126
MOOSE RACING
$39.95Fork seals are critical wear items that directly impact your suspension's performance and reliability—degraded seals lead to oil leakage, contamination, and loss of damping control. The MOOSE RACING 43mm Fork Seal Kit addresses this with a patented seal...04070091- SKU:
- 04070091
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- INSIDE DIAMETER METRIC:
- 43.00 MM
- OUTSIDE DIAMETER METRIC:
- 53.00 MM
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 9.50 MM
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- STREET
$39.95 -
MOOSE RACING Fork Seal Kit - 32 mm 56-127
MOOSE RACING
$39.95Fork seals are critical wear items that directly impact your suspension's performance and longevity. OEM seals degrade quickly under racing conditions, leading to oil leakage, reduced damping, and costly fork damage. The MOOSE RACING Fork Seal Kit 56-127...04070092- SKU:
- 04070092
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- INSIDE DIAMETER METRIC:
- 32.00 MM
- THICKNESS METRIC:
- 6.50 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 42.20 MM
- PRODUCT NAME:
- FORK SEAL KIT
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE RACING Fork Seal Kit - 27 mm 56-101
MOOSE RACING
$39.95Fork seals wear faster than most riders realize—degraded seals allow oil to weep onto your brakes and compromise suspension performance when you need it most. The MOOSE RACING 27mm Fork Seal Kit replaces worn OEM seals with a triple-lip design engineered...04070134- SKU:
- 04070134
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- INSIDE DIAMETER METRIC:
- 27.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 39.25 MM
- THICKNESS METRIC:
- 10.50 MM
$39.95 -
MOOSE RACING Fork Seal Kit - 45 mm 56-149
MOOSE RACING
$39.95Fork seals wear faster than you'd expect, especially under aggressive riding or racing conditions. Replacing OEM seals with the MOOSE RACING 45mm Fork Seal Kit extends service intervals and restores the hydraulic integrity your fork needs to perform...04070104- SKU:
- 04070104
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- FORK SEAL KIT
- THICKNESS METRIC:
- 11.00 MM
- INSIDE DIAMETER METRIC:
- 45.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 58.25 MM
- RIDING STYLE:
- STREET
$39.95 -
MOOSE RACING Fork Seal Kit - 35 mm 56-159
MOOSE RACING
$48.95Fork seals are where suspension performance meets longevity—and OEM seals are often the weak link in high-demand riding conditions. The MOOSE RACING 35mm Fork Seal Kit uses a patented MAX-LIFE compound that dramatically reduces friction while maintaining...04070357- SKU:
- 04070357
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- FORK SEAL KIT
- INSIDE DIAMETER METRIC:
- 35.00 MM
- OUTSIDE DIAMETER METRIC:
- 46.00 MM
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 11.00 MM
- UNITS:
- KIT
$48.95 -
MOOSE RACING Fork Bushing Kit - 52.00 mm 38-6131
MOOSE RACING
$35.95Fork bushings are critical wear items that directly impact suspension responsiveness and handling precision. Over time, stock bushings compress and wear, introducing play into your fork assembly that degrades steering feedback and increases unpredictable...04500482- SKU:
- 04500482
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.96'
- PRODUCT NAME:
- BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 47.80 MM
- MATERIAL:
- PTFE
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
$35.95 -
WORKS CONNECTION Pro Launch Start Device 12-224
WORKS CONNECTION
$148.95Shaving precious milliseconds off your launch is the difference between winning and watching from the sidelines. The WORKS CONNECTION Pro Launch Start Device eliminates the unpredictability of spring-based designs with a springless mechanism that...04500238- SKU:
- 04500238
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- COLOR/FINISH:
- RED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- LAUNCH CONTROL
- MODEL:
- FOR HONDA
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$148.95Qty in Cart: 0Quantity:Price:$148.95Subtotal: -
MOOSE RACING Fork Seal Kit - 35 mm 56-115
MOOSE RACING
$39.95Fork seals wear faster than most riders expect, causing oil leakage, contaminated suspension fluid, and a notchy, unpredictable feel in the front end. The MOOSE RACING Fork Seal Kit addresses this directly with a patented MAX-LIFE compound that reduces...04070086- SKU:
- 04070086
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- OUTSIDE DIAMETER METRIC:
- 48.15 MM
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- INSIDE DIAMETER METRIC:
- 35.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 11.00 MM
$39.95 -
MOOSE RACING Fork Seal Kit - 36 mm 56-119
MOOSE RACING
$39.95Fork seals are a critical wear item that directly impact suspension performance and handling precision. MOOSE RACING's engineered seal design reduces friction by up to 3x compared to OEM materials, which means less drag through the stroke, better...04070087- SKU:
- 04070087
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- INSIDE DIAMETER METRIC:
- 36.00 MM
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 10.50 MM
- PRODUCT NAME:
- FORK SEAL KIT
- OUTSIDE DIAMETER METRIC:
- 48.20 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$39.95 -
WORKS CONNECTION Steering Stem Nut - Black - Yamaha 24-370
WORKS CONNECTION
$37.95If you're serious about track reliability, your steering stem nut deserves the same attention as every other critical fastener on your bike. The WORKS CONNECTION steering stem nut replaces a weak point in your front-end assembly with precision-engineered...04100253- SKU:
- 04100253
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- STEM NUT
- PRODUCT NAME:
- NUT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- 6061-T6 ALUMINUM
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal: -
PARTS UNLIMITED Fork Seals - 31 mm ID x 43 mm OD x 10 mm T PUP40FORK455015
PARTS UNLIMITED
$10.15Fork seals are critical wear items that directly impact suspension performance and safety. Deteriorated or leaking seals compromise damping efficiency, increase internal friction, and allow contamination into your fork legs—leading to premature wear on...04070230- SKU:
- 04070230
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- INSIDE DIAMETER METRIC:
- 31.00 MM
- OUTSIDE DIAMETER METRIC:
- 43.00 MM
- PRODUCT NAME:
- FORK SEAL
- MATERIAL:
- NOK ANTI-STICTION
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 10.00 MM
- UNITS:
- PAIR
$10.15 -
MOOSE RACING Steering Stem Bearing Kit 22-1019
MOOSE RACING
$56.95Factory ball-type steering stem bearings wear quickly and demand frequent maintenance—tapered roller bearings eliminate that problem. This MOOSE RACING kit delivers a direct upgrade that reduces play, cuts maintenance intervals, and extends the life of...04100164- SKU:
- 04100164
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- MODEL:
- TAPERED ROLLER
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STEERING STEM
$56.95Qty in Cart: 0Quantity:Price:$56.95Subtotal: -
MOOSE RACING Fork Seal Kit - 35 mm 56-143
MOOSE RACING
$39.95Fork seals wear faster than almost any other suspension component, leading to oil leakage, reduced damping performance, and costly damage to your stanchions. The MOOSE RACING Fork Seal Kit replaces worn seals with engineered MAX-LIFE material that...04070100- SKU:
- 04070100
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- INSIDE DIAMETER METRIC:
- 35.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- THICKNESS METRIC:
- 10.00 MM
- OUTSIDE DIAMETER METRIC:
- 47.30 MM
- PRODUCT NAME:
- FORK SEAL KIT
$39.95 -
MOOSE RACING Steering Stem Bearing Kit 22-1026
MOOSE RACING
$43.95Stock ball-type steering stem bearings wear quickly and require frequent maintenance—tapered roller bearings eliminate this hassle while delivering smoother handling and a significantly longer service life. The MOOSE RACING 22-1026 kit upgrades your bike...04100034- SKU:
- 04100034
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- MODEL:
- TAPERED ROLLER
- PRODUCT NAME:
- BEARING
- TYPE:
- STEERING STEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$43.95 -
MOOSE RACING Steering Stem Bearing Kit 22-1030
MOOSE RACING
$61.95Factory ball bearings wear quickly under racing loads and constant steering input, creating sloppy headstock geometry that compromises handling precision. The MOOSE RACING Steering Stem Bearing Kit 22-1030 upgrades your front end with tapered roller...04100035- SKU:
- 04100035
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- MODEL:
- TAPERED ROLLER
- PRODUCT NAME:
- BEARING
- TYPE:
- STEERING STEM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$61.95 -
WORKS CONNECTION Pro Launch Start Device 12-606
WORKS CONNECTION
$148.95A reliable launch start device eliminates rider error and inconsistency at the gate—critical when fractions of a second separate winners from the rest. The WORKS CONNECTION Pro Launch uses a spring-less design that delivers positive engagement every...04500354- SKU:
- 04500354
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MOUNTING POSITION:
- FRONT
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- LAUNCH CONTROL
- RIDING STYLE:
- STREET
- MATERIAL:
- ALUMINUM
- MODEL:
- FOR KTM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$148.95Qty in Cart: 0Quantity:Price:$148.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 40.00 mm 38-6058
MOOSE RACING
$57.95Fork bushings wear with every stroke, and worn bushings compromise your suspension's precision and handling. The MOOSE RACING Fork Bushing Kit replaces all four critical contact points with dyno-tested components that outlast OEM bushings by a...04500143- SKU:
- 04500143
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.45'
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 34.90 MM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$57.95 -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6064
MOOSE RACING
$57.95Fork bushings wear faster than most riders realize—degraded bushings cause vague handling, increased friction, and premature seal failure. The MOOSE RACING Fork Bushing Kit is engineered to outlast OEM components by a significant margin, restoring...04500145- SKU:
- 04500145
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.90 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$57.95
