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Dirt Bike Suspension

Dirt Bike Suspension

Dirt Bike Suspension

CLICK HERE - DIRT BIKE SUSPENSION SERVICE

Dirt Bike Suspension Parts at JJ Motorsports

Fine-tune your ride with advanced suspension components from JJ Motorsports. From rear suspension upgrades to precision-manufactured forks, these products ensure improved handling and shock absorption. Find complementary off-road dirt bike parts to optimize every ride on the track or trail.

Shop trusted brands like Progressive Suspension for adjustable shocks and Fox for high-performance forks. Explore related categories such as Dirt Bike Braking for stopping power or Dirt Bike Tires and Wheels for complete setups.

Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • WORKS CONNECTION Pro Launch Start Device 12-720

    WORKS CONNECTION Pro Launch Start Device 12-720

    WORKS CONNECTION

    $149.75
    A reliable launch start device is critical for consistent gate performance—poor engagement or unpredictable release can cost you tenths on the track. The WORKS CONNECTION Pro Launch Start Device eliminates mechanical inconsistency with its spring-less...
    04500301
    SKU:
    04500301
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FORK
    UNITS:
    KIT
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    RED
    MATERIAL:
    ALUMINUM
    MODEL:
    FOR HUSQVARNA
    PRODUCT NAME:
    LAUNCH CONTROL
    $149.75
    Qty in Cart: 0
    Quantity:
    Price:
    $149.75
    Subtotal:
  • WORKS CONNECTION Pro Launch Start Device 12-700

    WORKS CONNECTION Pro Launch Start Device 12-700

    WORKS CONNECTION

    $149.75
    A reliable launch start device is the difference between consistent gate times and costly false starts. The WORKS CONNECTION Pro Launch Start Device 12-700 eliminates the unpredictability of spring-based designs with its spring-less mechanism, giving you...
    04500302
    SKU:
    04500302
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    COLOR/FINISH:
    RED
    MATERIAL:
    ALUMINUM
    COLOR/FINISH:
    BLACK
    MODEL:
    FOR HUSQVARNA
    PRODUCT NAME:
    LAUNCH CONTROL
    UNITS:
    KIT
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FORK
    $149.75
    Qty in Cart: 0
    Quantity:
    Price:
    $149.75
    Subtotal:
  • On Sale
    WORKS CONNECTION Pro Launch Start Device 12-331

    WORKS CONNECTION Pro Launch Start Device 12-331

    WORKS CONNECTION

    MSRP: $151.89
    Now: $91.00
    Was: $151.89
    A reliable launch device eliminates variables on the starting line—consistency is what separates competitive times from wasted tenths. The WORKS CONNECTION Pro Launch Start Device delivers positive engagement with zero spring creep, giving you the same...
    04500303
    SKU:
    04500303
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    MOUNTING POSITION:
    FRONT
    MODEL:
    FOR KAWASAKI
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FORK
    UNITS:
    KIT
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    RED
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    LAUNCH CONTROL
    MSRP: $151.89
    Now: $91.00
    Was: $151.89
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $151.89
    Now: $91.00
    Was: $151.89
    Subtotal:
  • WORKS CONNECTION Pro Launch Start Device 12-704

    WORKS CONNECTION Pro Launch Start Device 12-704

    WORKS CONNECTION

    $149.75
    A reliable start device is non-negotiable in competitive racing—inconsistent engagement costs you races. The WORKS CONNECTION Pro Launch Start Device eliminates the variables that come with traditional spring-loaded designs, giving you repeatable,...
    04500332
    SKU:
    04500332
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    RED
    MATERIAL:
    ALUMINUM
    MODEL:
    FOR HUSQVARNA
    PRODUCT NAME:
    LAUNCH CONTROL
    RIDING STYLE:
    STREET
    MOUNTING POSITION:
    FRONT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FORK
    UNITS:
    KIT
    $149.75
    Qty in Cart: 0
    Quantity:
    Price:
    $149.75
    Subtotal:
  • On Sale
    WORKS CONNECTION Pro Launch Start Device 12-721

    WORKS CONNECTION Pro Launch Start Device 12-721

    WORKS CONNECTION

    MSRP: $151.89
    Now: $95.00
    Was: $151.89
    A reliable launch control system separates consistent race starts from costly mistakes on the line. The WORKS CONNECTION Pro Launch Start Device eliminates mechanical inconsistency with its spring-less design, giving you the repeatable engagement and...
    04500470
    SKU:
    04500470
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MSRP: $151.89
    Now: $95.00
    Was: $151.89
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $151.89
    Now: $95.00
    Was: $151.89
    Subtotal:
  • WORKS CONNECTION Pro Launch Start Device 12-410

    WORKS CONNECTION Pro Launch Start Device 12-410

    WORKS CONNECTION

    $159.38
    A reliable launch device eliminates variables from your start sequence—giving you consistent, repeatable performance off the line every single time. The WORKS CONNECTION Pro eliminates the complexity of spring-based designs with a positive-engagement...
    04500485
    SKU:
    04500485
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FORK
    UNITS:
    KIT
    MODEL:
    FOR YAMAHA
    MOUNTING POSITION:
    FRONT
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    RED
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    LAUNCH CONTROL
    $159.38
    Qty in Cart: 0
    Quantity:
    Price:
    $159.38
    Subtotal:
  • On Sale
    WORKS CONNECTION Pro Launch Start Device 12-810

    WORKS CONNECTION Pro Launch Start Device 12-810

    WORKS CONNECTION

    MSRP: $151.89
    Now: $91.00
    Was: $151.89
    A reliable launch device can mean the difference between consistent race results and costly mistakes. The WORKS CONNECTION Pro Launch Start Device eliminates the variables that come with traditional spring-based designs, giving you repeatable engagement...
    04500581
    SKU:
    04500581
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    RED
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    LAUNCH CONTROL
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    FORK
    MSRP: $151.89
    Now: $91.00
    Was: $151.89
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $151.89
    Now: $91.00
    Was: $151.89
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 41 mm ID x 53 mm OD x 8/9.5 mm T PUP40FORK455052

    PARTS UNLIMITED Fork Seals - 41 mm ID x 53 mm OD x 8/9.5 mm T PUP40FORK455052

    PARTS UNLIMITED

    $12.19
    Worn fork seals allow hydraulic fluid to escape, compromising damping performance and risking suspension damage. These PARTS UNLIMITED fork seals are manufactured to OEM specifications, ensuring proper fluid retention and consistent suspension response...
    FS022
    SKU:
    FS022
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    STREET
    INSIDE DIAMETER METRIC:
    41.00 MM
    OUTSIDE DIAMETER METRIC:
    53.00 MM
    THICKNESS METRIC:
    8.00 MM/9.50 MM
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    PAIR
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    $12.19
    Qty in Cart: 0
    Quantity:
    Price:
    $12.19
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 35 mm ID x 48 mm OD x 11 mm T - NOK PUP40FORK455135

    PARTS UNLIMITED Fork Seals - 35 mm ID x 48 mm OD x 11 mm T - NOK PUP40FORK455135

    PARTS UNLIMITED

    $17.29
    Fork seals are critical to suspension performance—they prevent hydraulic fluid loss while keeping dirt and moisture out of your fork tubes. Worn or leaking seals compromise damping consistency, reduce ride quality, and accelerate internal component wear...
    04070264
    SKU:
    04070264
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MATERIAL:
    NOK ANTI-STICTION
    RIDING STYLE:
    STREET
    UNITS:
    PAIR
    PRODUCT NAME:
    FORK SEAL
    INSIDE DIAMETER METRIC:
    35.00 MM
    OUTSIDE DIAMETER METRIC:
    48.00 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    OFF-ROAD
    THICKNESS METRIC:
    11.00 MM
    $17.29
    Qty in Cart: 0
    Quantity:
    Price:
    $17.29
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 49 mm ID x 60 mm OD x 11 mm T PUP40FORK455073

    PARTS UNLIMITED Fork Seals - 49 mm ID x 60 mm OD x 11 mm T PUP40FORK455073

    PARTS UNLIMITED

    $24.43
    Fork seals are critical wear items that directly impact suspension performance and longevity. When seals degrade, hydraulic fluid leaks past the seal, reducing damping effectiveness and allowing contaminants into your fork internals—a scenario that leads...
    FS046
    SKU:
    FS046
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    MATERIAL:
    NOK ANTI-STICTION
    OUTSIDE DIAMETER METRIC:
    60.00 MM
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    PAIR
    INSIDE DIAMETER METRIC:
    49.00 MM
    THICKNESS METRIC:
    11.00 MM
    RIDING STYLE:
    STREET
    $24.43
    Qty in Cart: 0
    Quantity:
    Price:
    $24.43
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 36 mm ID x 48.5 mm OD x 14 mm T PUP40FORK455118

    PARTS UNLIMITED Fork Seals - 36 mm ID x 48.5 mm OD x 14 mm T PUP40FORK455118

    PARTS UNLIMITED

    $41.77
    Fork seals are critical wear items that directly impact your suspension's performance and longevity. Worn or leaking seals compromise damping efficiency, reduce fork oil retention, and can lead to accelerated internal wear—all of which degrade handling...
    04070037
    SKU:
    04070037
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    FORK SEAL
    UNITS:
    PAIR
    INSIDE DIAMETER METRIC:
    36.00 MM
    MATERIAL:
    RUBBER
    OUTSIDE DIAMETER METRIC:
    48.50 MM
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    14.00 MM
    $41.77
    Qty in Cart: 0
    Quantity:
    Price:
    $41.77
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 46 mm ID x 58.5 mm OD x 11.6 mm/BR5478I T PUP40FORK455120

    PARTS UNLIMITED Fork Seals - 46 mm ID x 58.5 mm OD x 11.6 mm/BR5478I T PUP40FORK455120

    PARTS UNLIMITED

    $88.69
    Fork seals are critical to suspension performance—they prevent hydraulic fluid from leaking into the fork tubes while maintaining proper damping characteristics. Over time, worn seals allow oil to escape, leading to poor suspension response, increased...
    04070038
    SKU:
    04070038
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    11.60 MM
    OUTSIDE DIAMETER METRIC:
    58.50 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    INSIDE DIAMETER METRIC:
    46.00 MM
    MATERIAL:
    RUBBER
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    PAIR
    $88.69
    Qty in Cart: 0
    Quantity:
    Price:
    $88.69
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 48 mm ID x 58 mm OD x 8.5/10 mm T PUP40FORK455200

    PARTS UNLIMITED Fork Seals - 48 mm ID x 58 mm OD x 8.5/10 mm T PUP40FORK455200

    PARTS UNLIMITED

    $20.35
    Fork seals are critical wear items that directly impact your suspension's performance and longevity. When seals degrade, fork oil leaks out, compromising damping characteristics and allowing contaminants into the internals—leading to fork failure and...
    04070330
    SKU:
    04070330
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    THICKNESS METRIC:
    8.50 MM/10.00 MM
    INSIDE DIAMETER METRIC:
    48.00 MM
    MATERIAL:
    RUBBER
    OUTSIDE DIAMETER METRIC:
    58.00 MM
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    PAIR
    RIDING STYLE:
    STREET
    $20.35
    Qty in Cart: 0
    Quantity:
    Price:
    $20.35
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 35 mm ID x 47 mm OD x 10 mm T PUP40FORK455169

    PARTS UNLIMITED Fork Seals - 35 mm ID x 47 mm OD x 10 mm T PUP40FORK455169

    PARTS UNLIMITED

    $17.29
    Fork 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 characteristics and leaving your forks vulnerable to internal corrosion...
    04070331
    SKU:
    04070331
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    10.00 MM
    INSIDE DIAMETER METRIC:
    35.00 MM
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    OUTSIDE DIAMETER METRIC:
    47.00 MM
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    PAIR
    $17.29
    Qty in Cart: 0
    Quantity:
    Price:
    $17.29
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 35 mm ID x 47.4 mm OD x 4.6/14 mm T PUP40FORK455182

    PARTS UNLIMITED Fork Seals - 35 mm ID x 47.4 mm OD x 4.6/14 mm T PUP40FORK455182

    PARTS UNLIMITED

    $56.05
    Fork seal degradation compromises suspension performance and accelerates internal damage to your fork tubes—a situation that's both costly and dangerous. PARTS UNLIMITED Fork Seals are engineered to OEM specifications, delivering the hydraulic integrity...
    04070332
    SKU:
    04070332
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    STREET
    THICKNESS METRIC:
    4.60 MM/14.00 MM
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    PAIR
    INSIDE DIAMETER METRIC:
    35.00 MM
    MATERIAL:
    RUBBER
    OUTSIDE DIAMETER METRIC:
    47.40 MM
    RIDING STYLE:
    OFF-ROAD
    $56.05
    Qty in Cart: 0
    Quantity:
    Price:
    $56.05
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 45.5 mm ID x 62 mm OD x 7.5/10 mm T PUP40FORK455201

    PARTS UNLIMITED Fork Seals - 45.5 mm ID x 62 mm OD x 7.5/10 mm T PUP40FORK455201

    PARTS UNLIMITED

    $30.55
    Fork seals are critical wear items that directly impact suspension performance and safety—degraded seals allow hydraulic fluid to leak, compromising damping characteristics and fork responsiveness. These PARTS UNLIMITED seals are manufactured to OEM...
    04070333
    SKU:
    04070333
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    FORK SEAL
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    INSIDE DIAMETER METRIC:
    45.50 MM
    OUTSIDE DIAMETER METRIC:
    62.00 MM
    THICKNESS METRIC:
    7.50 MM/10.00 MM
    UNITS:
    PAIR
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    $30.55
    Qty in Cart: 0
    Quantity:
    Price:
    $30.55
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 32.5 mm ID x 43.5/47 mm OD x 8/14 mm T PUP40FORK455205

    PARTS UNLIMITED Fork Seals - 32.5 mm ID x 43.5/47 mm OD x 8/14 mm T PUP40FORK455205

    PARTS UNLIMITED

    $13.21
    Fork seal degradation is one of the most common causes of front-end instability and oil leakage in suspension systems. These OEM-specification seals restore the hydraulic integrity of your forks, ensuring consistent damping performance and preventing...
    04070347
    SKU:
    04070347
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    STREET
    OUTSIDE DIAMETER METRIC:
    43.50 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    INSIDE DIAMETER METRIC:
    32.50 MM
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    THICKNESS METRIC:
    8.00 MM/14.00 MM
    UNITS:
    PAIR
    $13.21
    Qty in Cart: 0
    Quantity:
    Price:
    $13.21
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 46 mm ID x 58.5 mm OD x 4.7/11 mm T PUP40FORK455099

    PARTS UNLIMITED Fork Seals - 46 mm ID x 58.5 mm OD x 4.7/11 mm T PUP40FORK455099

    PARTS UNLIMITED

    $31.57
    Fork seal degradation is one of the most common causes of suspension performance loss in motorcycles—once oil begins weeping past the seals, damping characteristics deteriorate and internal corrosion accelerates. These PARTS UNLIMITED replacement fork...
    WS099
    SKU:
    WS099
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    INSIDE DIAMETER METRIC:
    46.00 MM
    MATERIAL:
    RUBBER
    OUTSIDE DIAMETER METRIC:
    58.50 MM
    RIDING STYLE:
    OFF-ROAD
    THICKNESS METRIC:
    4.70 MM/11.00 MM
    UNITS:
    PAIR
    $31.57
    Qty in Cart: 0
    Quantity:
    Price:
    $31.57
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 32 mm ID x 44 mm OD x 10.5 mm T PUP40FORK455019

    PARTS UNLIMITED Fork Seals - 32 mm ID x 44 mm OD x 10.5 mm T PUP40FORK455019

    PARTS UNLIMITED

    $11.17
    Fork seals deteriorate with every ride—oil leakage, contamination, and loss of damping performance follow shortly after. These PARTS UNLIMITED replacement seals restore your suspension to OEM specifications, eliminating leaks and ensuring consistent fork...
    FS006
    SKU:
    FS006
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    THICKNESS METRIC:
    10.50 MM
    UNITS:
    PAIR
    OUTSIDE DIAMETER METRIC:
    44.00 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    INSIDE DIAMETER METRIC:
    32.00 MM
    PRODUCT NAME:
    FORK SEAL
    RIDING STYLE:
    STREET
    $11.17
    Qty in Cart: 0
    Quantity:
    Price:
    $11.17
    Subtotal:
  • PARTS UNLIMITED Fork Seals - 34 mm ID x 46 mm OD x 10.5 mm T PUP40FORK455028

    PARTS UNLIMITED Fork Seals - 34 mm ID x 46 mm OD x 10.5 mm T PUP40FORK455028

    PARTS UNLIMITED

    $11.17
    Fork 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 characteristics and risking internal corrosion that can permanently damage...
    FS008
    SKU:
    FS008
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    RIDING STYLE:
    STREET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    THICKNESS METRIC:
    10.50 MM
    UNITS:
    PAIR
    INSIDE DIAMETER METRIC:
    34.00 MM
    OUTSIDE DIAMETER METRIC:
    46.00 MM
    PRODUCT NAME:
    FORK SEAL
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    $11.17
    Qty in Cart: 0
    Quantity:
    Price:
    $11.17
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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