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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MOOSE RACING Fork Bushing Kit - 48.80 mm 38-6128
MOOSE RACING
$51.95Bushings 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 rings04500345- SKU:
- 04500345
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 48.10 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.47'
- MATERIAL:
- PTFE
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 2.05'
$51.95Qty in Cart: 0Quantity:Price:$51.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 52.00 mm 38-6074
MOOSE RACING
$71.95Bushings 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 rings04500209- SKU:
- 04500209
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.92'
- INNER BUSHING INSIDE DIAMETER METRIC:
- 46.80 MM
- PRODUCT NAME:
- BUSHING KIT
- UNITS:
- KIT
$71.95Qty in Cart: 0Quantity:Price:$71.95Subtotal: -
WORKS CONNECTION Pro Launch Start Device 12-602
WORKS CONNECTION
$148.95The "next-generation" in start devices, Spring-less design delivers positive engagement and consistent release, "Easy set by rider" start trigger, CNC-machined exclusively from aircraft-grade aluminum, Lightweight, complete assembly only 50 grams, Custom...04500318- SKU:
- 04500318
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MODEL:
- FOR KTM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- MOUNTING POSITION:
- FRONT
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- LAUNCH CONTROL
- RIDING STYLE:
- STREET
$148.95Qty in Cart: 0Quantity:Price:$148.95Subtotal: -
PARTS UNLIMITED Fork Seals - 27 mm ID x 39 mm OD x 10.5 mm T PUP40FORK455080
PARTS UNLIMITED
$11.17High-quality replacement fork seals, Made to OEM specificationsFS003- SKU:
- FS003
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
- INSIDE DIAMETER METRIC:
- 27.00 MM
- OUTSIDE DIAMETER METRIC:
- 39.00 MM
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 10.50 MM
$11.17Qty in Cart: 0Quantity:Price:$11.17Subtotal: -
PARTS UNLIMITED Fork Seals - 33 mm ID x 46 mm OD x 10.5 mm T PUP40FORK455025
PARTS UNLIMITED
$10.15High-quality replacement fork seals, Made to OEM specificationsFS007- SKU:
- FS007
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- INSIDE DIAMETER METRIC:
- 33.00 MM
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 10.50 MM
- UNITS:
- PAIR
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- STREET
- OUTSIDE DIAMETER METRIC:
- 46.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$10.15 -
PARTS UNLIMITED Fork Seals - 27 mm ID x 37 mm OD x 7.5 mm T PUP40FORK455005
PARTS UNLIMITED
$9.13High-quality replacement fork seals, Made to OEM specificationsFS002- SKU:
- FS002
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- OUTSIDE DIAMETER METRIC:
- 37.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- INSIDE DIAMETER METRIC:
- 27.00 MM
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- FORK SEAL
- THICKNESS METRIC:
- 7.50 MM
- UNITS:
- PAIR
$9.13 -
PARTS UNLIMITED Fork Seals - 35 mm ID x 47 mm OD x 10 mm T PUP40FORK455029
PARTS UNLIMITED
$11.17High-quality replacement fork seals, Made to OEM specificationsFS010- SKU:
- FS010
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- INSIDE DIAMETER METRIC:
- 35.00 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- MATERIAL:
- RUBBER
- OUTSIDE DIAMETER METRIC:
- 47.00 MM
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 10.00 MM
- UNITS:
- PAIR
$11.17 -
PARTS UNLIMITED Fork Seals - 40 mm ID x 52 mm OD x 8/9.5 mm T PUP40FORK455050
PARTS UNLIMITED
$12.19High-quality replacement fork seals, Made to OEM specificationsFS048- SKU:
- FS048
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- NOK ANTI-STICTION
- OUTSIDE DIAMETER METRIC:
- 52.00 MM
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- PAIR
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 10.00 MM/10.50 MM
- INSIDE DIAMETER METRIC:
- 40.00 MM
$12.19Qty in Cart: 0Quantity:Price:$12.19Subtotal: -
MOOSE RACING Steering Stem Bearing Kit 22-1010
MOOSE RACING
$66.95Designed as a drop-in replacement to upgrade OEM ball-type bearings to taper bearings, or a high-quality replacement if your bike comes with taper bearings stock, Tapered roller bearings provide decreased maintenance along with less wear, smoother...04100026- SKU:
- 04100026
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- MODEL:
- TAPERED ROLLER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING
- TYPE:
- STEERING STEM
$66.95 -
MOOSE RACING Steering Stem Bearing Kit 22-1018
MOOSE RACING
$58.95Designed as a drop-in replacement to upgrade OEM ball-type bearings to taper bearings, or a high-quality replacement if your bike comes with taper bearings stock, Tapered roller bearings provide decreased maintenance along with less wear, smoother...04100028- SKU:
- 04100028
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- MODEL:
- TAPERED ROLLER
- TYPE:
- STEERING STEM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$58.95Qty in Cart: 0Quantity:Price:$58.95Subtotal: -
MOOSE RACING Steering Stem Bearing Kit 22-1021
MOOSE RACING
$48.95Designed as a drop-in replacement to upgrade OEM ball-type bearings to taper bearings, or a high-quality replacement if your bike comes with taper bearings stock, Tapered roller bearings provide decreased maintenance along with less wear, smoother...04100029- SKU:
- 04100029
- Availability:
- Ships Same Business Day
- Weight:
- 0.53 LBS
- MODEL:
- TAPERED ROLLER
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STEERING STEM
- UNITS:
- KIT
$48.95 -
MOOSE RACING Fork Bushing Kit - 52.00 mm 38-6081
MOOSE RACING
$54.95Bushings 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 rings04500212- SKU:
- 04500212
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.92'
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 46.80 MM
- PRODUCT NAME:
- BUSHING KIT
$54.95 -
WORKS CONNECTION Air Fork EZ Fill 26-362
WORKS CONNECTION
$140.95Quick-and-easy air fork pressure adjustment, Reliable design for confidence, Compatible with standard or oversize bars, Works with OE and aftermarket bar mounts/positions, Simple, no modifications, installs in minutes, O-ring-equipped, laser-engraved and...04040299- SKU:
- 04040299
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- BRASS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- PRE-LOAD ADJUSTER
- MODEL:
- EZ FILL
- TYPE:
- FORK
$140.95Qty in Cart: 0Quantity:Price:$140.95Subtotal: -
MOOSE RACING Fork Seal Kit - 39 mm 56-125
MOOSE RACING
$39.95Seal profile is engineered to create equal pressure in each seal lip; equalized seal pressure creates less drag and longer seal life, Patented MAX-LIFE has a coefficient of friction up to 3 times less than the OEM seal material, Triple-lip seal design,...04070316- SKU:
- 04070316
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 11.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
- INSIDE DIAMETER METRIC:
- 39.00 MM
- OUTSIDE DIAMETER METRIC:
- 52.00 MM
$39.95 -
MOOSE RACING BEARING STEERING STEM GAS 22-1056
MOOSE RACING
$55.95Designed as a drop-in replacement to upgrade OEM ball-type bearings to taper bearings, or a high-quality replacement if your bike comes with taper bearings stock, Tapered roller bearings provide decreased maintenance along with less wear, smoother...04100165- SKU:
- 04100165
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- UNITS:
- KIT
- TYPE:
- TAPERED ROLLER
- APPLICATION:
- STEERING STEM
- PRODUCT NAME:
- BEARING
$55.95Qty in Cart: 0Quantity:Price:$55.95Subtotal: -
PARTS UNLIMITED Fork Seals - 41.7 mm ID x 55 mm OD x 8/10.5 mm T PUP40FORK455067
PARTS UNLIMITED
$11.17High-quality replacement fork seals, Made to OEM specifications04070027- SKU:
- 04070027
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- OUTSIDE DIAMETER METRIC:
- 55.00 MM
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 8.00 MM/10.50 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- INSIDE DIAMETER METRIC:
- 41.70 MM
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
$11.17Qty in Cart: 0Quantity:Price:$11.17Subtotal: -
PARTS UNLIMITED Fork Seals - 32 mm ID x 44 mm OD x 11 mm T PUP40FORK455074
PARTS UNLIMITED
$13.21High-quality replacement fork seals, Made to OEM specifications04070266- SKU:
- 04070266
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 11.00 MM
- INSIDE DIAMETER METRIC:
- 32.00 MM
- OUTSIDE DIAMETER METRIC:
- 44.00 MM
- PRODUCT NAME:
- FORK SEAL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$13.21Qty in Cart: 0Quantity:Price:$13.21Subtotal: -
PARTS UNLIMITED Fork Seals - 37 mm ID x 49 mm OD x 8 mm T PUP40FORK455040
PARTS UNLIMITED
$11.17High-quality replacement fork seals, Made to OEM specificationsFS016- SKU:
- FS016
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- THICKNESS METRIC:
- 8.00 MM
- UNITS:
- PAIR
- OUTSIDE DIAMETER METRIC:
- 49.00 MM
- PRODUCT NAME:
- FORK SEAL
- INSIDE DIAMETER METRIC:
- 37.00 MM
- RIDING STYLE:
- STREET
$11.17Qty in Cart: 0Quantity:Price:$11.17Subtotal: -
MOOSE RACING Fork Seal Kit - 50 mm 56-148
MOOSE RACING
$39.95Seal profile is engineered to create equal pressure in each seal lip; equalized seal pressure creates less drag and longer seal life, Patented MAX-LIFE has a coefficient of friction up to 3 times less than the OEM seal material, Triple-lip seal design,...04070305- SKU:
- 04070305
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- INSIDE DIAMETER METRIC:
- 50.00 MM
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 10.50 MM
- UNITS:
- KIT
- OUTSIDE DIAMETER METRIC:
- 60.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE RACING Fork Seal Kit - 46 mm 56-150
MOOSE RACING
$39.95Seal profile is engineered to create equal pressure in each seal lip; equalized seal pressure creates less drag and longer seal life, Patented MAX-LIFE has a coefficient of friction up to 3 times less than the OEM seal material, Triple-lip seal design,...04070307- SKU:
- 04070307
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 10.00 MM
- INSIDE DIAMETER METRIC:
- 46.00 MM
- OUTSIDE DIAMETER METRIC:
- 58.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
$39.95
