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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RACE TECH Fork Springs - 0.50 kg/mm FRSP 444750
RACE TECH
$149.99Front suspension performance hinges on spring rate consistency, and the RACE TECH Fork Springs deliver precision engineering that separates podium finishes from DNFs. Built from heat-treated chrome silicon steel and shot-peened for durability, these 0.50...04050099- SKU:
- 04050099
- Availability:
- Ships Same Business Day
- Weight:
- 2.57 LBS
- OUTSIDE DIAMETER METRIC:
- 43.60 MM
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 28.00 LB/IN
- LENGTH IMPERIAL:
- 18.58'
$149.99 -
RACE TECH Fork Springs - 0.46 kg/mm FRSP 434646
RACE TECH
$149.99Precision fork tuning demands springs engineered to exact specifications, and RACE TECH delivers with these 0.46 kg/mm springs built for competitors who refuse compromise. Shot-peened and heat-treated chrome silicon steel ensures consistent performance...04050027- SKU:
- 04050027
- Availability:
- Ships Same Business Day
- Weight:
- 2.86 LBS
- OUTSIDE DIAMETER METRIC:
- 43.50 MM
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- PAIR
- LENGTH IMPERIAL:
- 18.15'
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- TYPE:
- FORK
$149.99 -
FACTORY CONNECTION Front Fork Springs - 0.42 kg/mm LRI-042
FACTORY CONNECTION
$159.95Suspension performance hinges on fork spring consistency, and Factory Connection's precision-wound springs deliver the repeatability you need lap after lap. Built with heat-tempered, shot-peened construction, these springs resist fatigue under extreme...04050335- SKU:
- 04050335
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- SPRING RATE IMPERIAL:
- 23.50 LB/IN
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- FORK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.44 kg/mm LRI-044
FACTORY CONNECTION
$159.95Factory Connection front fork springs deliver consistent, predictable suspension response across your entire stroke—critical for maintaining chassis geometry and feedback through demanding terrain. Precision manufacturing ensures your fork pressure...04050336- SKU:
- 04050336
- Availability:
- Ships Same Business Day
- Weight:
- 2.72 LBS
- SPRING RATE IMPERIAL:
- 24.60 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.46 kg/mm LRI-046
FACTORY CONNECTION
$159.95Front fork springs are the foundation of suspension performance—they determine how your bike responds to inputs, absorbs impacts, and maintains geometry under load. Factory Connection's precision-wound springs deliver consistent rates and predictable...04050337- SKU:
- 04050337
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.48 kg/mm LRI-048
FACTORY CONNECTION
$159.95Precision fork springs are foundational to your suspension's performance—they directly impact handling response, bottoming resistance, and ride consistency across varying track conditions. The FACTORY CONNECTION LRI-048 delivers the accurate spring rate...04050338- SKU:
- 04050338
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
PIVOT WORKS Steering Stem Bearing Kit PWSSK-G03-001
PIVOT WORKS
$69.20Worn or contaminated steering stem bearings directly compromise your bike's handling precision and introduce dangerous play in the front end. The PIVOT WORKS Steering Stem Bearing Kit restores factory-spec steering response and eliminates the stiction...04100129- SKU:
- 04100129
- Availability:
- Ships Same Business Day
- Weight:
- 0.53 LBS
- PRODUCT NAME:
- STEERING STEM BEARING
- COLOR/FINISH:
- CHROME
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
$69.20 -
PIVOT WORKS Steering Stem Bearing Kit PWSSK-H05-420
PIVOT WORKS
$82.11Worn or contaminated steering stem bearings rob you of precise handling feedback and introduce play into your steering input—critical issues at speed or on technical courses. The PIVOT WORKS Steering Stem Bearing Kit restores the tight, responsive...04100130- SKU:
- 04100130
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- CHROME
- UNITS:
- KIT
- PRODUCT NAME:
- STEERING STEM BEARING
$82.11 -
PIVOT WORKS Steering Stem Bearing Kit PWSSK-HQ01-001
PIVOT WORKS
$82.95Steering feel degrades when bearing tolerances wear or contamination from pressure washing compromises your fork seals. The PIVOT WORKS Steering Stem Bearing Kit restores precision handling and eliminates the vague, notchy feedback that costs you control...04100132- SKU:
- 04100132
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COLOR/FINISH:
- CHROME
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- STEERING STEM BEARING
$82.95 -
PIVOT WORKS Steering Stem Bearing Kit PWSSK-HQ02-001
PIVOT WORKS
$60.17Steering responsiveness deteriorates when bearing surfaces accumulate debris or corrosion, compromising both precision and safety on track or road. The PIVOT WORKS Steering Stem Bearing Kit restores factory-spec geometry and eliminates the stiction that...04100133- SKU:
- 04100133
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- STEERING STEM BEARING
$60.17 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-K11-021
PIVOT WORKS
$116.88Fork seals degrade from constant compression cycles and exposure to moisture, leading to oil leakage, air infiltration, and loss of suspension responsiveness. A complete seal and bushing replacement restores your fork's damping characteristics and...04070276- SKU:
- 04070276
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$116.88 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-T05-531
PIVOT WORKS
$116.88Fork seals and bushings wear down with every ride, leading to oil leakage, reduced damping performance, and accelerated component degradation. This complete kit eliminates the need to source individual parts separately, ensuring proper fitment and...04070280- SKU:
- 04070280
- Availability:
- Ships Same Business Day
- Weight:
- 0.61 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL AND BUSHING KIT
$116.88 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-T06-531
PIVOT WORKS
$130.95Fork seal degradation is one of the most common causes of suspension performance loss and expensive secondary damage to fork internals. The PIVOT WORKS Fork Seal/Bushing Kit PWFFK-T06-531 gives you everything needed to restore your suspension to factory...04070281- SKU:
- 04070281
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- UNITS:
- KIT
$130.95 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-S18-008
PIVOT WORKS
$102.23Fork seal degradation compromises suspension responsiveness and invites contamination into your fork internals—a scenario that costs far more to repair than preventative maintenance. This complete PIVOT WORKS kit eliminates guesswork by bundling...04070284- SKU:
- 04070284
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$102.23 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-Y11-008
PIVOT WORKS
$102.23Fork seals and bushings wear down from regular riding and racing, leading to oil leakage, poor damping, and compromised suspension performance. This complete kit gives you everything needed to restore your fork to factory specifications without multiple...04070287- SKU:
- 04070287
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
$102.23 -
PIVOT WORKS Fork Seal Kit - 48 mm ID x 58 mm OD PWFSK-Z009
PIVOT WORKS
$60.74Fork seals degrade over time from heat, pressure, and contamination—allowing oil to weep past the seals and compromising suspension performance. This PIVOT WORKS kit delivers OEM-equivalent seals at a fraction of a full rebuild cost, making it ideal for...04070288- SKU:
- 04070288
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INSIDE DIAMETER METRIC:
- 48.00 MM
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$60.74 -
PIVOT WORKS Fork Seal Kit - 48 mm ID x 58 mm OD PWFSK-Z011
PIVOT WORKS
$60.74Fork seals degrade over time, allowing oil to weep onto your brake rotors and compromising suspension performance. This PIVOT WORKS kit gives you a cost-effective way to restore your fork's integrity without committing to a full rebuild. Get your...04070290- SKU:
- 04070290
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- INSIDE DIAMETER METRIC:
- 48.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
$60.74 -
PIVOT WORKS Fork Seal Kit - 37 mm ID x 50 mm OD PWFSK-Z008
PIVOT WORKS
$61.37Leaking fork seals compromise handling precision and can lead to costly suspension damage if left unaddressed. This PIVOT WORKS kit delivers OEM-quality seals at a fraction of rebuild kit pricing, making it the smart choice for riders who want to restore...04070183- SKU:
- 04070183
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 50.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER METRIC:
- 37.00 MM
$61.37 -
PIVOT WORKS Steering Stem Bearing Kit PWSSK-K02-021
PIVOT WORKS
$78.60Worn or corroded steering stem bearings directly compromise your bike's handling precision and introduce dangerous play in your front end. The PIVOT WORKS Steering Stem Bearing Kit PWSSK-K02-021 restores OEM-quality steering response, eliminating the...SSK02021- SKU:
- SSK02021
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- STEERING STEM BEARING
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$78.60 -
RACE TECH Fork Springs - 0.40 kg/mm FRSP 444540
RACE TECH
$149.99Fork springs are critical to suspension performance, directly affecting your bike's ability to absorb impacts, maintain chassis geometry, and deliver consistent handling lap after lap. The RACE TECH 0.40 kg/mm spring delivers a high stiffness-to-mass...04050148- SKU:
- 04050148
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- PRODUCT NAME:
- SPRING KIT
- LENGTH IMPERIAL:
- 17.91'
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 22.40 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal:
