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
-
MOOSE RACING Fork Bushing Kit - 52.00 mm 38-6081
MOOSE RACING
$54.95Fork bushings wear faster than almost any other suspension component, and worn bushings introduce play that kills precision handling and introduces unwanted friction. The MOOSE RACING Fork Bushing Kit replaces all four critical bushing surfaces with...04500212- 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
$140.95Air fork pressure adjustments shouldn't require tools, hoses, or guesswork—the WORKS CONNECTION EZ Fill gets you dialed in seconds with nothing more than a pump. Whether you're fine-tuning suspension for track conditions or swapping between riders, this...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
$39.95Fork seals are critical wear items that directly impact your suspension's performance and longevity. A degraded seal allows hydraulic fluid to escape, leading to poor damping, increased friction, and expensive fork damage. The MOOSE RACING 39 mm Fork...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
$55.95OEM ball-type steering bearings wear quickly and require frequent maintenance, especially under aggressive riding conditions. The Moose Racing 22-1056 tapered roller bearing set replaces them with a design that reduces play, cuts maintenance intervals,...04100165- SKU:
- 04100165
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- UNITS:
- KIT
- TYPE:
- TAPERED ROLLER
- APPLICATION:
- STEERING STEM
- PRODUCT NAME:
- BEARING
$55.95 -
PARTS UNLIMITED Fork Seals - 41.7 mm ID x 55 mm OD x 8/10.5 mm T PUP40FORK455067
PARTS UNLIMITED
$10.95Fork seals are critical wear items that directly impact suspension performance and safety. Degraded seals allow hydraulic fluid to escape, resulting in poor damping, reduced ride quality, and potential suspension damage. These PARTS UNLIMITED fork seals...04070027- 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
$10.95 -
PARTS UNLIMITED Fork Seals - 32 mm ID x 44 mm OD x 11 mm T PUP40FORK455074
PARTS UNLIMITED
$13.21Fork seals are critical wear items that directly impact your suspension's performance and longevity. Worn or leaking seals allow hydraulic fluid to escape, reducing damping performance and exposing internal components to contamination and corrosion...04070266- 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
$10.95Fork seals are critical wear items that directly impact your suspension's performance and longevity. Worn or leaking seals allow hydraulic fluid to escape, compromising damping action, increasing friction, and risking fork tube corrosion. These PARTS...FS016- 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
$10.95 -
MOOSE RACING Fork Seal Kit - 50 mm 56-148
MOOSE RACING
$39.95Fork seals are critical wear items that directly impact suspension performance and handling precision. OEM seals degrade quickly under racing conditions, leading to oil leakage, loss of damping control, and costly fork rebuilds. The MOOSE RACING Fork...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
$39.95 -
MOOSE RACING Fork Seal Kit - 46 mm 56-150
MOOSE RACING
$39.95Fork seal degradation directly impacts suspension performance and introduces contamination into your fork oil—a problem that compounds quickly on the track or trail. The MOOSE RACING Fork Seal Kit replaces worn seals with a patented compound that reduces...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 -
MOOSE RACING Fork Seal Kit - 43 mm 56-135
MOOSE RACING
$39.95Fork seals degrade from constant pressure cycling and contamination—when they fail, you're facing oil leakage, poor suspension response, and expensive fork damage. The MOOSE RACING 43mm Fork Seal Kit eliminates these problems with patented MAX-LIFE...04070177- SKU:
- 04070177
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- INSIDE DIAMETER METRIC:
- 43.00 MM
- OUTSIDE DIAMETER METRIC:
- 55.00 MM
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 10.50 MM
- UNITS:
- KIT
- PRODUCT NAME:
- FORK SEAL KIT
$39.95 -
MOOSE RACING Fork Seal Kit - 41 mm 56-130
MOOSE RACING
$39.95Fork seals wear faster than almost any other suspension component, and worn seals mean oil leakage, reduced damping performance, and costly fork damage. The MOOSE RACING Fork Seal Kit eliminates premature failure with a triple-lip design and proprietary...04070093- SKU:
- 04070093
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- OUTSIDE DIAMETER METRIC:
- 53.20 MM
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 8.00 MM
- INSIDE DIAMETER METRIC:
- 41.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$39.95 -
MOOSE RACING Fork Seal Kit - 46 mm 56-141
MOOSE RACING
$39.95Fork seals degrade with every riding season, compromising suspension performance and inviting hydraulic leaks that damage your forks from the inside out. The MOOSE RACING 46 mm Fork Seal Kit replaces worn seals with engineered MAX-LIFE compound that...04070098- SKU:
- 04070098
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- INSIDE DIAMETER METRIC:
- 46.00 MM
- PRODUCT NAME:
- FORK SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 9.50 MM
- OUTSIDE DIAMETER METRIC:
- 58.25 MM
$39.95 -
MOOSE RACING Fork Bushing Kit - 40.00 mm 38-6047
MOOSE RACING
$50.95Fork bushings wear faster than nearly any other suspension component, causing play, reducing steering precision, and accelerating seal degradation. The MOOSE RACING Fork Bushing Kit 40mm restores OEM geometry and handling characteristics with premium...04500135- SKU:
- 04500135
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- PRODUCT NAME:
- BUSHING KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 34.90 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.45'
- MATERIAL:
- PTFE
$50.95Qty in Cart: 0Quantity:Price:$50.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6048
MOOSE RACING
$54.95Fork bushings endure thousands of compression cycles, and worn bushings compromise your suspension's responsiveness and increase wear on seals and stanchions. The MOOSE RACING Fork Bushing Kit delivers OEM-quality replacement bushings that outlast stock...04500136- SKU:
- 04500136
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.90 MM
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
$54.95 -
MOOSE RACING Lower Fork Leg Guard - Left Leg 32-345
MOOSE RACING
$49.95Protect your front suspension from impact damage without adding unnecessary weight to your bike. The MOOSE RACING Lower Fork Leg Guard is engineered from 6061 T-6 billet aluminum to withstand aggressive riding while maintaining the lightweight handling...04060078- SKU:
- 04060078
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- LEFT FORK LEG
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- GUARD
- UNITS:
- EACH
$49.95Qty in Cart: 0Quantity:Price:$49.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6069
MOOSE RACING
$73.95Fork bushings wear faster than most riders realize, causing sloppy steering response and accelerated seal degradation. The MOOSE RACING Fork Bushing Kit replaces worn components with dyno-tested bushings that outlast OEM parts by a significant margin,...04500150- SKU:
- 04500150
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MATERIAL:
- PTFE
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.90 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- PRODUCT NAME:
- BUSHING KIT
$73.95Qty in Cart: 0Quantity:Price:$73.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 48.80 mm 38-6082
MOOSE RACING
$54.95Fork bushings are the critical wear points that determine your suspension's responsiveness and longevity. Over time, stock bushings degrade from repetitive compression and extension cycles, causing play in the fork legs and reducing your ability to dial...04500235- SKU:
- 04500235
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- INNER BUSHING INSIDE DIAMETER METRIC:
- 48.1 MM
- PRODUCT NAME:
- BUSHING KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.89'
- INNER BUSHING WIDTH IMPERIAL:
- 0.47'
- MATERIAL:
- PTFE
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6026
MOOSE RACING
$56.95Fork bushings wear faster than most riders realize, leading to sloppy steering response and premature seal failure. The MOOSE RACING Fork Bushing Kit delivers OEM-quality replacement bushings engineered to outlast stock components, restoring your bike's...04500269- SKU:
- 04500269
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.70 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.58'
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
$56.95 -
MOOSE RACING Fork Bushing Kit - 45.00 mm 38-6018
MOOSE RACING
$55.95Fork bushings are critical wear items that directly impact your suspension's responsiveness, damping consistency, and overall ride quality. Over time, OEM bushings compress and wear unevenly, leading to vague handling and increased maintenance costs. The...04500270- SKU:
- 04500270
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.64'
- INNER BUSHING INSIDE DIAMETER METRIC:
- 39.70 MM
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
$55.95 -
MOOSE RACING Fork Bushing Kit - 47.00 mm 38-6057
MOOSE RACING
$54.95Fork bushings wear with every compression cycle, and worn bushings translate directly to poor suspension feel, reduced damping control, and accelerated seal degradation. The MOOSE RACING Fork Bushing Kit replaces all four bushings in your fork lowers...04500271- SKU:
- 04500271
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- INNER BUSHING OUTSIDE DIAMETER IMPERIAL:
- 1.72'
- INNER BUSHING WIDTH IMPERIAL:
- 0.79'
- MATERIAL:
- PTFE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- FORK
- INNER BUSHING INSIDE DIAMETER METRIC:
- 41.70 MM
- UNITS:
- KIT
- PRODUCT NAME:
- BUSHING KIT
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal:
