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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PIVOT WORKS Fork Seal/Bushing Kit PWFFK-K09-021
PIVOT WORKS
$118.02Fork seals wear faster than most riders realize, leading to oil leakage, reduced damping performance, and accelerated bushing wear. This complete PIVOT WORKS kit eliminates the need to source...04070193- SKU:
- 04070193
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$118.02Qty in Cart: 0Quantity:Price:$118.02Subtotal: -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-K10-021
PIVOT WORKS
$118.02Fork seal and bushing wear is one of the most common sources of sloppy handling and oil leakage in off-road and racing applications. The PIVOT WORKS Fork Seal/Bushing Kit PWFFK-K10-021 gives you a...04070194- SKU:
- 04070194
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$118.02 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-S13-021
PIVOT WORKS
$118.02Fork seal degradation leads to oil leakage, loss of damping control, and premature bushing wear—all of which compromise suspension performance and rider safety. The PIVOT WORKS Fork Seal/Bushing Kit...04070195- SKU:
- 04070195
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$118.02 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-H08-001
PIVOT WORKS
$125.06Fork seal degradation is one of the most common causes of oil leakage, loss of damping performance, and accelerated bushing wear—all of which compromise handling and safety. The PIVOT WORKS Fork...04070273- SKU:
- 04070273
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL AND BUSHING KIT
$125.06Qty in Cart: 0Quantity:Price:$125.06Subtotal: -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-H10-008
PIVOT WORKS
$101.28Fork seals and bushings wear under constant suspension stress, leading to oil leaks, sloppy handling, and accelerated component degradation. This complete kit eliminates the need for multiple...04070275- SKU:
- 04070275
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL AND BUSHING KIT
$101.28 -
UFO Fork Cover - White - KX - '96-'00 KA03704280
UFO
$30.95Protect your fork tubes from mud, debris, and UV damage while maintaining a clean, factory appearance. UFO fork covers are engineered to fit precisely on your KX model without requiring modifications...1270729- SKU:
- 1270729
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- PRODUCT NAME:
- PROTECTORS
- COLOR/FINISH:
- WHITE
- TYPE:
- FORK SLIDER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- BASE COLOR:
- WHITE
- MATERIAL:
- PLASTIC
$30.95 -
UFO Fork Cover - Black - KX - '96-'00 KA03704001
UFO
$30.95Protect your fork tubes from mud, debris, and UV exposure while maintaining a clean, factory-appearance aesthetic. The UFO Fork Cover shields critical suspension components from premature wear and...1270733- SKU:
- 1270733
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- PROTECTORS
- TYPE:
- FORK SLIDER
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK
- MATERIAL:
- PLASTIC
- RIDING STYLE:
- OFF-ROAD
$30.95 -
UFO Fork Cover - White - RM - '92-'93 SU02943041
UFO
$30.95Keep your RM fork protected from trail debris, mud, and UV damage with a genuine UFO fork cover engineered for a perfect fit. Pre-drilled mounting holes align with your stock attachment points,...1271129- SKU:
- 1271129
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- BASE COLOR:
- WHITE
- PRODUCT NAME:
- PROTECTOR
- COLOR/FINISH:
- WHITE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK TUBE
- MATERIAL:
- PLASTIC
- UNITS:
- PAIR
$30.95 -
On Sale
RACE TECH Fork Springs - 0.44 kg/mm FRSP 414644
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precision fork tuning demands springs engineered to exacting standards, and RACE TECH delivers exactly that with this 0.44 kg/mm spring. If you're chasing lap time consistency or need predictable...FRSP414644- SKU:
- FRSP414644
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 18.19'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
- SPRING RATE IMPERIAL:
- 24.60 LB/IN
MSRP: $149.99Now: $134.99Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $134.99Was: $149.99Subtotal: -
On Sale
RACE TECH Fork Springs - 0.44 kg/mm FRSP 414744
RACE TECH
MSRP: $149.99Now: $134.99Was: $149.99Precision fork tuning demands springs that deliver consistent, predictable performance lap after lap. The RACE TECH 0.44 kg/mm fork springs are engineered for riders who need exact rate accuracy and...FRSP414744- SKU:
- FRSP414744
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- LENGTH IMPERIAL:
- 18.54'
- OUTSIDE DIAMETER METRIC:
- 41.20 MM
- SPRING RATE IMPERIAL:
- 24.60 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
MSRP: $149.99Now: $134.99Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $134.99Was: $149.99Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.42 kg/mm LSA-042
FACTORY CONNECTION
$159.95Suspension performance hinges on spring consistency—and cheap springs fade under track stress. Factory Connection's front fork springs deliver precision-engineered rate stability lap after lap, with...LSA042- SKU:
- LSA042
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- SPRING RATE IMPERIAL:
- 23.50 LB/IN
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.44 kg/mm LSA-044
FACTORY CONNECTION
$159.95Precision fork tuning starts with the right spring rate, and Factory Connection's LSA-044 delivers the consistency that separates podium finishes from mid-pack rides. These U.S.-manufactured springs...LSA044- SKU:
- LSA044
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 24.60 LB/IN
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.48 kg/mm LSB-048
FACTORY CONNECTION
$159.95Factory Connection front fork springs deliver the precision tuning your suspension demands, whether you're dialing in a championship-winning setup or refining your bike's handling characteristics...LSB048- SKU:
- LSB048
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
On Sale
FACTORY CONNECTION Front Fork Springs - 0.45 kg/mm LRL-045
FACTORY CONNECTION
MSRP: $149.99Now: $96.00Was: $149.99Front fork springs are critical to your suspension's ability to maintain consistent ride height, support your vehicle's weight, and absorb impacts without bottoming out. The FACTORY CONNECTION...04050044- SKU:
- 04050044
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.20 LB/IN
- UNITS:
- PAIR
MSRP: $149.99Now: $96.00Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $96.00Was: $149.99Subtotal: -
On Sale
FACTORY CONNECTION Front Fork Springs - 0.49 kg/mm LRL-049
FACTORY CONNECTION
MSRP: $149.99Now: $96.00Was: $149.99Precision fork springs are foundational to suspension performance—they directly affect your bike's ability to absorb impacts, maintain consistent geometry, and respond predictably under load. Factory...04050047- SKU:
- 04050047
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 27.40 LB/IN
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
MSRP: $149.99Now: $96.00Was: $149.99Qty in Cart: 0Quantity:Price:MSRP: $149.99Now: $96.00Was: $149.99Subtotal: -
FACTORY CONNECTION Front Fork Springs - 1.00 kg/mm LRV-100
FACTORY CONNECTION
$119.95If you're running a high-performance dirt bike or ATV, fork spring rates directly determine your suspension's ability to handle aggressive terrain and maintain consistent contact with the ground...04050322- SKU:
- 04050322
- Availability:
- Ships Same Business Day
- Weight:
- 2.87 LBS
- SPRING RATE IMPERIAL:
- 56.00 LB/IN
- TYPE:
- FORK
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- EACH
$119.95Qty in Cart: 0Quantity:Price:$119.95Subtotal: -
PROX Fork Seal/Wiper Kit - 48 mm ID x 58 mm OD x 9.4 mm T 40.S48589.4
PROX
$73.95Fork seals and wipers are critical wear items that directly impact your suspension's performance and longevity. Degraded seals allow oil to escape and contamination to enter, reducing damping...04070348- SKU:
- 04070348
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- OUTSIDE DIAMETER:
- 58,00 MM (2,28')
- THICKNESS IMPERIAL:
- 0.37'
- PRODUCT NAME:
- FORK SEAL/WIPER
- RIDING STYLE:
- OFF-ROAD
- THICKNESS:
- 9,40 MM (0,37')
- UNITS:
- KIT
- INSIDE DIAMETER:
- 48,00 MM (1,89')
$73.95 -
PROX Fork Seal/Wiper Kit - 35 mm ID x 48 mm OD x 11 mm T 40.S354811
PROX
$41.95Fork seals and wipers are critical wear items that directly impact your suspension's performance and longevity. Worn seals allow hydraulic fluid to escape, leading to reduced damping, poor handling,...04070184- SKU:
- 04070184
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- OUTSIDE DIAMETER:
- 48,00 MM (1,89')
- PRODUCT NAME:
- FORK SEAL/WIPER
- THICKNESS IMPERIAL:
- 0.43'
- UNITS:
- KIT
- INSIDE DIAMETER:
- 35,00 MM (1,38')
- RIDING STYLE:
- OFF-ROAD
- THICKNESS:
- 11,00 MM (0,43')
$41.95 -
PROX Fork Seal/Wiper Kit - 48 mm ID x 57.80 mm OD x 9 mm T 40.S4857.89
PROX
$62.95Fork seals wear out—it's not a question of if, but when. Worn seals compromise suspension performance, allow hydraulic fluid to leak onto your brakes, and can damage fork internals if left unchecked...04070188- SKU:
- 04070188
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- INSIDE DIAMETER:
- 48,00 MM (1,89')
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER:
- 57,80 MM (2,28')
- THICKNESS:
- 9,00 MM (0,35')
- THICKNESS IMPERIAL:
- 0.35'
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL/WIPER
$62.95 -
PROX Fork Protectors - 130 mm 40.FSP1304450
PROX
$22.95Fork seals are vulnerable to damage from rocks, sand, and debris encountered during aggressive riding—compromising suspension performance and leading to costly repairs. PROX Fork Protectors shield...04060109- SKU:
- 04060109
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- YELLOW
- LENGTH IMPERIAL:
- 5.125'
- TYPE:
- FORK
- UNITS:
- PAIR
- FOR FORK TUBE DIAMETER IMPERIAL:
- 1.73' - 1.98'
- PRODUCT NAME:
- PROTECTOR
- BASE COLOR:
- BLACK
$22.95
