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 Kit - 48 mm ID x 58 mm OD PWFSK-Z003
PIVOT WORKS
$57.07Fork seals degrade over time, allowing oil to weep past the piston rod and compromising suspension performance and fork longevity. This PIVOT WORKS kit provides OEM-quality replacement seals at a fraction of a full rebuild cost, making it the practical...04070076- SKU:
- 04070076
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- INSIDE DIAMETER METRIC:
- 48.00 MM
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
$57.07Qty in Cart: 0Quantity:Price:$57.07Subtotal: -
PIVOT WORKS Fork Seal Kit - 49 mm ID x 60 mm OD PWFSK-Z005
PIVOT WORKS
$58.17Fork seals degrade over time, allowing oil to weep onto your brake rotors and compromising suspension performance. This kit delivers OEM-quality seals at a fraction of rebuild-kit pricing, perfect for riders who know exactly what they need. Get your...04070078- SKU:
- 04070078
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INSIDE DIAMETER METRIC:
- 49.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- OUTSIDE DIAMETER METRIC:
- 60.00 MM
- UNITS:
- KIT
$58.17Qty in Cart: 0Quantity:Price:$58.17Subtotal: -
PIVOT WORKS Fork Seal Kit - 43 mm ID x 53 mm OD PWFSK-Z006
PIVOT WORKS
$61.37Fork seals deteriorate with use, allowing oil to leak and compromising suspension performance and handling. This PIVOT WORKS kit lets you restore proper damping without the expense of a complete fork rebuild, making it the smart choice for riders who...04070079- SKU:
- 04070079
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- PRODUCT NAME:
- FORK SEAL KIT
- INSIDE DIAMETER METRIC:
- 43.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 53.00 MM
$61.37 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-K17-000
PIVOT WORKS
$118.02Fork seals and bushings wear faster than most riders realize, leading to oil leakage, inconsistent damping, and premature fork failure. This complete PIVOT WORKS kit eliminates the need to source components separately, giving you everything required for...04070351- SKU:
- 04070351
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- FORK
$118.02 -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-Y08-000
PIVOT WORKS
$99.74Fork seal degradation is one of the fastest ways to compromise suspension performance and invite costly internal damage to your forks. The PIVOT WORKS Fork Seal/Bushing Kit gives you everything needed to restore your fork's hydraulic integrity and...04070196- SKU:
- 04070196
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL AND BUSHING KIT
$99.74Qty in Cart: 0Quantity:Price:$99.74Subtotal: -
PIVOT WORKS Fork Seal/Bushing Kit PWFFK-H09-008
PIVOT WORKS
$102.23Fork seal degradation directly impacts steering precision, stability, and suspension performance—problems that compound quickly in racing or aggressive riding conditions. This complete kit eliminates the need for multiple part orders and ensures proper...04070274- SKU:
- 04070274
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SEAL AND BUSHING KIT
- UNITS:
- KIT
$102.23 -
UFO Fork Cover - White - KX - '91-'93 KA02739280
UFO
$29.95Protect your KX fork tubes from mud, debris, and impact damage with this OEM-style fork cover designed specifically for '91-'93 models. The UFO fork cover maintains factory aesthetics while safeguarding critical suspension components from wear and...1270529- SKU:
- 1270529
- 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
$29.95 -
UFO Fork Cover - White - RM - '91 SU02925041
UFO
$29.95The UFO Fork Cover protects your front suspension from mud, debris, and impact damage while maintaining the clean aesthetic of your bike. Factory-spec fitment means no modification required—these covers bolt directly to your stock mounting points for a...1271029- SKU:
- 1271029
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- MATERIAL:
- PLASTIC
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- PROTECTOR
- BASE COLOR:
- WHITE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK TUBE
- UNITS:
- PAIR
$29.95 -
UFO Fork Cover - Black - KTM - '95-'07 KT03025001
UFO
$29.95Fork tube protectors are essential maintenance items that shield your suspension components from mud, rocks, and debris encountered on the trail or track. The UFO Fork Cover delivers OEM-quality protection with a clean, factory-matched appearance that...1272133- SKU:
- 1272133
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- TYPE:
- FORK SLIDER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- PROTECTOR
- BASE COLOR:
- BLACK
$29.95 -
On Sale
RACE TECH Gold Valve Fork Kit FMGV 3420
RACE TECH
MSRP: $199.99Now: $179.99Was: $199.99Front fork performance hinges on precise valve control, and the RACE TECH Gold Valve Fork Kit FMGV 3420 gives you direct tuning authority over compression and rebound characteristics. By tripling piston flow area and placing valving control in the shim...FMGV3420- SKU:
- FMGV3420
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MODEL:
- GOLD VALVE
- PRODUCT NAME:
- FORK KIT
- RIDING STYLE:
- STREET
- TYPE:
- STANDARD
- COLOR/FINISH:
- GOLD
- OUTSIDE DIAMETER IMPERIAL:
- 1.34'
- UNITS:
- KIT
MSRP: $199.99Now: $179.99Was: $199.99Qty in Cart: 0Quantity:Price:MSRP: $199.99Now: $179.99Was: $199.99Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.45 kg/mm LSU-045
FACTORY CONNECTION
$149.99Consistent suspension geometry is non-negotiable in competitive riding or aggressive street use—even minor spring rate variations compound into handling inconsistencies lap after lap. The FACTORY CONNECTION LSU-045 delivers the precision you need with...LSU045- SKU:
- LSU045
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.20 LB/IN
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.46 kg/mm LSV-046
FACTORY CONNECTION
$149.99Consistent fork performance is non-negotiable in racing and aggressive riding—weak or mismatched springs compromise handling, increase fatigue on components, and leave performance on the table. Factory Connection's LSV-046 front fork springs deliver...LSV046- SKU:
- LSV046
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- TYPE:
- FORK
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.48 kg/mm LSV-048
FACTORY CONNECTION
$159.95Suspension performance hinges on spring consistency, and Factory Connection's precision-engineered front fork springs deliver the rate accuracy and fatigue resistance that competitive riders demand. Whether you're dialing in a championship setup or...LSV048- SKU:
- LSV048
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
- RIDING STYLE:
- OFF-ROAD
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.51 kg/mm LRE-051
FACTORY CONNECTION
$149.99Suspension performance hinges on spring quality, and Factory Connection's front fork springs deliver the precision damping characteristics that separate competitive setups from mediocre ones. Whether you're fine-tuning a dirt bike or maintaining...04050939- SKU:
- 04050939
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 28.60 LB/IN
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.47 kg/mm LSU-047
FACTORY CONNECTION
$159.95Suspension performance hinges on spring consistency, and Factory Connection's front fork springs deliver precisely calibrated rates that translate directly to better handling and reduced fade during extended sessions. These U.S.-made springs are...04051032- SKU:
- 04051032
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 26.32 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.47 kg/mm LRL-047
FACTORY CONNECTION
$159.95Suspension geometry demands precision, and compromised fork springs compromise your entire chassis setup. FACTORY CONNECTION front fork springs deliver repeatable, consistent performance through meticulous manufacturing tolerances—critical when you're...04050046- SKU:
- 04050046
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 26.30 LB/IN
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FACTORY CONNECTION Front Fork Springs - 0.50 kg/mm LSB-050
FACTORY CONNECTION
$159.95Precision front fork springs are critical to suspension geometry and handling consistency—especially in competitive riding where even slight changes in spring rate affect cornering speed and rider confidence. The FACTORY CONNECTION LSB-050 delivers the...04050106- SKU:
- 04050106
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- SPRING RATE IMPERIAL:
- 28.00 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
UFO Fork Cover - Black - SX/SXF KT04055-001
UFO
$29.95Fork tube protectors shield your suspension components from mud, debris, and abrasive track conditions that accelerate wear on seals and internals. A bolt-on upgrade that maintains OEM aesthetics while extending fork longevity and maintaining consistent...04200004- SKU:
- 04200004
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- FORK SLIDER
- UNITS:
- PAIR
- PRODUCT NAME:
- PROTECTOR
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- BLACK
- MATERIAL:
- PLASTIC
$29.95 -
UFO Fork Cover - White KA04701-280
UFO
$29.95Protect your fork tubes from road debris and UV damage while maintaining a clean, factory-correct appearance. The UFO Fork Cover keeps critical suspension components pristine and extends component longevity in harsh riding conditions. Pre-drilled...04120167- SKU:
- 04120167
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BASE COLOR:
- WHITE
- MATERIAL:
- PLASTIC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- PROTECTORS
- TYPE:
- FORK SLIDER
$29.95 -
UFO Fork Cover - Black - KXF250/450 KA04701-001
UFO
$29.95Protect your KXF fork assembly from mud, debris, and impact damage while maintaining the aggressive aesthetic of your bike. UFO fork covers are OEM-quality plastic shields that bolt directly to stock mounting points—no fabrication required. Keep your...04120168- SKU:
- 04120168
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- BASE COLOR:
- BLACK
- TYPE:
- FORK SLIDER
- PRODUCT NAME:
- PROTECTORS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- PLASTIC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$29.95
