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
-
FACTORY CONNECTION Front Fork Springs - 0.46 kg/mm LRA-046
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050167- SKU:
- 04050167
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.48 kg/mm LRA-048
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050168- SKU:
- 04050168
- Availability:
- Ships Same Business Day
- Weight:
- 2.61 LBS
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- SPRING RATE IMPERIAL:
- 26.90 LB/IN
- UNITS:
- PAIR
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.50 kg/mm LRA-050
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050169- SKU:
- 04050169
- Availability:
- Ships Same Business Day
- Weight:
- 2.94 LBS
- SPRING RATE IMPERIAL:
- 28.00 LB/IN
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$159.95 -
FACTORY CONNECTION Fork Pressure Springs - 1.70 kg/mm PRESSSPG1.7K06
FACTORY CONNECTION
$55.00Lighter action springs, Offer more comfort on small bumps, Forks become more compliant on square-edge braking bumps, A must-have for off-road riders, Made in the U.S.A.04050171- SKU:
- 04050171
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- PRODUCT NAME:
- PRESSURE SPRING SET
- SPRING RATE IMPERIAL:
- 95.20 LB/IN
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- PAIR
$55.00 -
FACTORY CONNECTION Front Fork Springs - 0.49 kg/mm LSU-049
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050196- SKU:
- 04050196
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 27.40 LB/IN
- TYPE:
- FORK
- UNITS:
- PAIR
- PRODUCT NAME:
- SPRING KIT
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.52 kg/mm LSA-052
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050255- SKU:
- 04050255
- Availability:
- Ships Same Business Day
- Weight:
- 3.06 LBS
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 29.10 LB/IN
$159.95 -
FACTORY CONNECTION Fork Pressure Springs - 1.42 kg/mm PRESSSPG1.42-08
FACTORY CONNECTION
$55.00Lighter action springs, Offer more comfort on small bumps, Forks become more compliant on square-edge braking bumps, A must-have for off-road riders, Made in the U.S.A.04050258- SKU:
- 04050258
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- PRESSURE SPRING SET
- UNITS:
- PAIR
- SPRING RATE IMPERIAL:
- 79.52 LB/IN
$55.00 -
FACTORY CONNECTION Fork Pressure Springs - 1.61 kg/mm PRESSSPG1.61-08
FACTORY CONNECTION
$55.00Lighter action springs, Offer more comfort on small bumps, Forks become more compliant on square-edge braking bumps, A must-have for off-road riders, Made in the U.S.A.04050271- SKU:
- 04050271
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- PRODUCT NAME:
- PRESSURE SPRING SET
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- SPRING RATE IMPERIAL:
- 90.16 LB/IN
- TYPE:
- FORK
$55.00 -
FACTORY CONNECTION Fork Pressure Springs - 1.76 kg/mm PRESSSPG1.76-08
FACTORY CONNECTION
$55.00Lighter action springs, Offer more comfort on small bumps, Forks become more compliant on square-edge braking bumps, A must-have for off-road riders, Made in the U.S.A.04050272- SKU:
- 04050272
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- PRESSURE SPRING SET
- SPRING RATE IMPERIAL:
- 98.56 LB/IN
- UNITS:
- PAIR
$55.00 -
FACTORY CONNECTION Front Fork Springs - 0.46 kg/mm LLS-046
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050279- SKU:
- 04050279
- Availability:
- Ships Same Business Day
- Weight:
- 2.62 LBS
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.80 LB/IN
$159.95 -
FACTORY CONNECTION Front Fork Springs - 0.88 kg/mm LRV-088
FACTORY CONNECTION
$119.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050319- SKU:
- 04050319
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 49.80 LB/IN
- UNITS:
- EACH
$119.95 -
FACTORY CONNECTION Front Fork Springs - 0.92 kg/mm LRV-092
FACTORY CONNECTION
$119.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050320- SKU:
- 04050320
- Availability:
- Ships Same Business Day
- Weight:
- 2.93 LBS
- SPRING RATE IMPERIAL:
- 51.50 LB/IN
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$119.95 -
FACTORY CONNECTION Front Fork Springs - 0.45 kg/mm LRN-045
FACTORY CONNECTION
$159.95Cold-wound on precision CNC equipment for the ultimate in strength, Heat-tempered, shot-peened and end-ground for durability, Preset for fatigue resistance, Accurate rates and proper fitment assured, Made in the U.S.A.04050823- SKU:
- 04050823
- Availability:
- Ships Same Business Day
- Weight:
- 2.91 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- PRODUCT NAME:
- SPRING KIT
- SPRING RATE IMPERIAL:
- 25.20 LB/IN
- UNITS:
- PAIR
$159.95 -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6063
MOOSE RACING
$57.95Bushings are dyno-tested to 500,000 strokes with less wear than OEM bushings, Kit includes two slider bushings and two leg bushings, Kit includes all copper washers and O-rings, Kit includes two fork seal snap rings04500144- SKU:
- 04500144
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.90 MM
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
$57.95 -
UFO Fork Tube Protectors - White - RM - '99-'03 SU03905041
UFO
$29.95Fork Tube Protectors - White - RM - '99-'03 Pre-drilled pieces mount easily to stock locations1271229- SKU:
- 1271229
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
$29.95 -
SDI Free Piston Assembly SDEFFPA-SFF
SDI
$62.95Free Piston Assembly More durable than stock plastic piston, Improved design, Comes assembled with all necessary bushings, o-rings and seals, Completely rebuildable for service, Made in the U.S.A04500596- SKU:
- 04500596
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$62.95Qty in Cart: 0Quantity:Price:$62.95Subtotal: -
SDI Fork Preload Spacer - 2.5 mm SDEFSP25-25
SDI
$5.95Fork Preload Spacer - 2.5 mm Easiest way to adjust preload on twin chamber forks, Made in the U.S.A04500606- SKU:
- 04500606
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$5.95Qty in Cart: 0Quantity:Price:$5.95Subtotal: -
SDI DU Piston Bushing Conversion Kit - 46 mm DRPBK-KYB46
SDI
$15.95DU Piston Bushing Conversion Kit - 46 mm (DRPBK-KYB46) Replaces stock wear band for enhanced performance Standard piston rings experience significant wear in the first five hours Designed to reduce friction for smoother operation Ensures...04500614- SKU:
- 04500614
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
SDI Fork Service Kit - 49 mm SFSK49
SDI
$79.95Fork Service Kit - 49 mm Contains all the parts needed to service your forks04500631- SKU:
- 04500631
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$79.95 -
SDI Fork Service Kit - 35 mm WFSK35-SKF
SDI
$99.95Fork Service Kit - 35 mm Contains all the parts needed to service your forks04500633- SKU:
- 04500633
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$99.95Qty in Cart: 0Quantity:Price:$99.95Subtotal:
