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
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PRO GRIP Fork Boots - 42/45 mm - Black PA251045GO02
PRO GRIP
$22.49Fork boots are essential protective gear for any serious rider—they shield your suspension from trail debris, mud, and rocks that accelerate wear on internal seals and stanchions. The PRO GRIP Fork Boots keep your fork performing at peak efficiency by...04060086- SKU:
- 04060086
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$22.49Qty in Cart: 0Quantity:Price:$22.49Subtotal: -
PRO GRIP Fork Boots - 42/45 mm - Yellow PA251045GOGI
PRO GRIP
$22.49Fork boots are essential protection for your suspension components, shielding them from the debris, mud, and rocks that accumulate during hard riding or racing. Without proper coverage, dust and contaminants can damage fork seals and degrade suspension...04060088- SKU:
- 04060088
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
$22.49Qty in Cart: 0Quantity:Price:$22.49Subtotal: -
WORKS CONNECTION Pro Launch Start Device - Husqvarna 12-P705
WORKS CONNECTION
$159.95A reliable launch device is the difference between consistent starts and costly mistakes on the line. The WORKS CONNECTION Pro Launch Start Device eliminates the inconsistency of traditional spring-based systems with its spring-less design, giving you...04500736- SKU:
- 04500736
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
On Sale
POLISPORT Fork Guard Cover - Orange 8399300001
POLISPORT
MSRP: $34.16Now: $31.77Was: $34.16Factory plastic guards take a beating on the track and trail, prone to cracking and fading under UV exposure and impact. The POLISPORT Fork Guard Cover delivers OEM-level fitment with superior durability and color retention, giving you a direct bolt-on...04120610- SKU:
- 04120610
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
MSRP: $34.16Now: $31.77Was: $34.16 -
On Sale
POLISPORT Fork Guard Cover - Black 8399300003
POLISPORT
MSRP: $34.16Now: $31.77Was: $34.16Stock fork guards take a beating—rocks, debris, and trail impacts degrade OEM plastic quickly, compromising both aesthetics and protection. The POLISPORT Fork Guard Cover delivers OEM-level fitment with superior durability, resisting the scratches,...04120611- SKU:
- 04120611
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
MSRP: $34.16Now: $31.77Was: $34.16 -
On Sale
POLISPORT Fork Guard Cover - White 8399300002
POLISPORT
MSRP: $34.16Now: $31.77Was: $34.16Fork guard covers take a beating during aggressive riding and track days—impacts, road debris, and abrasion degrade plastic quickly, compromising both protection and appearance. This POLISPORT Fork Guard Cover delivers OEM-level fitment and durability at...04120612- SKU:
- 04120612
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
MSRP: $34.16Now: $31.77Was: $34.16 -
UFO Fork Tube Protectors - Green KA04701#026
UFO
$29.95Fork tube protectors shield your suspension components from road debris, mud, and impacts that accelerate wear on seals and bushings. By containing abrasive material and reducing direct contact with fork tubes, these protectors extend service intervals...04120659- SKU:
- 04120659
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
FACTORY LINKS Steering Rebuild Kit SSK-H-398
FACTORY LINKS
$52.00A worn or damaged steering stem compromises both handling precision and safety—especially under demanding off-road conditions. This complete rebuild kit restores your steering system to OEM specifications, eliminating play and vagueness in the helm while...04010114- SKU:
- 04010114
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$52.00Qty in Cart: 0Quantity:Price:$52.00Subtotal: -
MOOSE RACING Fork Seal Kit 56-192
MOOSE RACING
$45.95Fork seals degrade over time from constant compression cycles, heat, and contamination—allowing oil to weep onto your brakes and compromising suspension performance. The MOOSE RACING Fork Seal Kit 56-192 restores your fork's hydraulic integrity with...04070717- SKU:
- 04070717
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
$45.95 -
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
