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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SDI Fork Service Kit - 43 mm WFSK43-AER
SDI
$114.95Fork maintenance directly impacts suspension responsiveness, damping consistency, and overall ride quality—neglecting service intervals accelerates wear on seals and internal components. The SDI Fork...04500635- SKU:
- 04500635
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
$114.95Qty in Cart: 0Quantity:Price:$114.95Subtotal: -
SDI Fork Service Kit - 48 mm WFSK48
SDI
$133.95Regular fork service is critical to maintaining consistent suspension performance and preventing premature wear on seals, bushings, and internal components. The SDI Fork Service Kit - 48 mm includes...04500636- SKU:
- 04500636
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
$133.95Qty in Cart: 0Quantity:Price:$133.95Subtotal: -
MOOSE RACING Fork Springs - 31 mm - 2.4 n/mm 0405-1120
MOOSE RACING
$109.95Proper fork spring rate is critical to suspension performance—too soft and you'll experience excessive dive and poor handling; too stiff and you sacrifice comfort and traction. The MOOSE RACING Fork...04051120- SKU:
- 04051120
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 31 mm - 2.6 n/mm 0405-1121
MOOSE RACING
$109.95Moose Racing fork springs deliver the precise damping characteristics your suspension demands, whether you're pushing lap times on the track or dialing in your off-road machine. Built from premium...04051121- SKU:
- 04051121
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$109.95 -
MOOSE RACING Fork Springs - 31 mm - 3.0 n/mm 0405-1123
MOOSE RACING
$109.95Proper suspension geometry starts with quality fork springs that maintain consistent damping characteristics throughout your ride. Moose Racing fork springs deliver the precision engineering your...04051123- SKU:
- 04051123
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 31 mm - 3.2 n/mm 0405-1124
MOOSE RACING
$135.95Fork springs are the foundation of your suspension's response and handling characteristics. Moose Racing fork springs deliver consistent, predictable performance through precision manufacturing and...04051124- SKU:
- 04051124
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
$135.95 -
MOOSE RACING Fork Springs - 31 mm - 3.4 n/mm 0405-1125
MOOSE RACING
$109.95If you're running 31 mm forks, spring rate directly impacts your suspension's ability to handle load transfer and maintain chassis control through corners. Moose Racing fork springs are engineered to...04051125- SKU:
- 04051125
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
$109.95 -
MOOSE RACING Fork Springs - 31 mm - 3.6 n/mm 0405-1126
MOOSE RACING
$109.95Properly valved fork springs are critical to suspension geometry and handling consistency—especially when you're running modified or high-output machines where OEM springs fall short. Moose Racing...04051126- SKU:
- 04051126
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 31 mm - 3.8 n/mm 0405-1127
MOOSE RACING
$109.95Moose Racing fork springs deliver consistent, predictable suspension performance through precision engineering and meticulous manufacturing. Built from chrome silicone wire and heat-treated to...04051127- SKU:
- 04051127
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 43.5 mm - 4.0 n/mm 0405-1128
MOOSE RACING
$109.95Precision fork springs are critical to your bike's suspension geometry and handling characteristics—cheap springs lose their rate quickly under compression cycles, compromising your setup and safety...04051128- SKU:
- 04051128
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
$109.95 -
MOOSE RACING Fork Springs - 43.5 mm - 4.2 n/mm 0405-1129
MOOSE RACING
$109.95Fork springs are the foundation of your bike's suspension geometry—worn or incorrect springs compromise handling, comfort, and safety. The MOOSE RACING 43.5 mm springs (4.2 n/mm) deliver consistent...04051129- SKU:
- 04051129
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 43.5 mm - 4.4 n/mm 0405-1130
MOOSE RACING
$109.95Proper fork spring rate is critical to suspension tuning—too soft and you lose responsive handling, too stiff and you sacrifice bump absorption. The MOOSE RACING 4.4 n/mm springs deliver precise...04051130- SKU:
- 04051130
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
$109.95 -
MOOSE RACING Fork Springs - 43.5 mm - 4.6 n/mm 0405-1131
MOOSE RACING
$109.95Fork spring performance directly impacts your bike's handling, comfort, and longevity. Stock springs lose their rate over time, resulting in poor suspension geometry and unpredictable feedback...04051131- SKU:
- 04051131
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
$109.95 -
MOOSE RACING Fork Springs - 43.5 mm - 4.8 n/mm 0405-1132
MOOSE RACING
$109.95Moose Racing fork springs deliver consistent, predictable suspension performance by maintaining precise spring rates through every compression cycle. Whether you're fine-tuning your bike's handling...04051132- SKU:
- 04051132
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 43.5 mm - 5.0 n/mm 0405-1133
MOOSE RACING
$109.95Precise suspension tuning starts with quality fork springs, and Moose Racing delivers the consistency and durability that separates controlled handling from unpredictable feedback. These 5.0 n/mm...04051133- SKU:
- 04051133
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
$109.95 -
MOOSE RACING Fork Springs - 43.5 mm - 5.2 n/mm 0405-1134
MOOSE RACING
$109.95Moose Racing fork springs deliver consistent, predictable suspension performance through precision engineering and rigorous manufacturing standards. If you're experiencing inconsistent damping, fade,...04051134- SKU:
- 04051134
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
$109.95 -
MOOSE RACING Fork Springs - 43.5 mm - 4.0 n/mm 0405-1135
MOOSE RACING
$109.95Precision fork springs are foundational to suspension performance—they directly influence your bike's handling response, bottoming resistance, and ride quality across varying track conditions and...04051135- SKU:
- 04051135
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 43.5 mm - 4.2 n/mm 0405-1136
MOOSE RACING
$109.95Your suspension's responsiveness hinges on fork spring quality—weak or worn springs compromise handling precision and rider safety. MOOSE RACING Fork Springs deliver consistent damping rates through...04051136- SKU:
- 04051136
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 43.5 mm - 4.4 n/mm 0405-1137
MOOSE RACING
$109.95Precision fork springs are fundamental to suspension performance, directly affecting your bike's handling, comfort, and cornering stability. Moose Racing fork springs are engineered with cold-coiled,...04051137- SKU:
- 04051137
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
MOOSE RACING Fork Springs - 43.5 mm - 4.6 n/mm 0405-1138
MOOSE RACING
$109.95Suspension geometry is only as good as your fork springs, and cheap springs will rob you of consistency lap after lap. Moose Racing fork springs are precision-manufactured to DIN2095 Grade 1...04051138- SKU:
- 04051138
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
$109.95
