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Dirt Bike Drivetrain

Dirt Bike Drivetrain

Dirt Bike Drivetrain

Dirt Bike Drivetrain Parts at JJ Motorsports

Enhance your dirt bike’s power transfer with premium drivetrain parts from JJ Motorsports. Find heavy-duty chains, front and rear sprockets, and clutch components designed to withstand intense riding demands. Combine these with other motocross gear and parts to maximize acceleration and ride efficiency on the track or trail.

Shop trusted brands like JT Chains for sealed chains and Renthal for ultralight sprockets. Explore related categories such as Dirt Bike Engine Parts for power upgrades or Dirt Bike Exhaust for complete tuning.

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
  • Rekluse RadiusX 4.0 Clutch Kit Honda CRF450R 2021-2026 RMS-8301102

    Rekluse RadiusX 4.0 Clutch Kit Honda CRF450R 2021-2026 RMS-8301102

    REKLUSE

    $999.00
    The Rekluse RadiusX 4.0 Clutch delivers the precise engagement and consistent power delivery that modern CRF450R engines demand, eliminating chatter and drag that compromise control in high-stress riding conditions. Whether you're pushing hard on the...
    11300705
    SKU:
    11300705
    Availability:
    Ships Same Business Day
    Weight:
    3.09 LBS
    $999.00
    Qty in Cart: 0
    Quantity:
    Price:
    $999.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Honda CRF450X 2019-2025 RMS-8301119

    Rekluse RadiusX 4.0 Clutch Kit for Honda CRF450X 2019-2025 RMS-8301119

    REKLUSE

    $949.00
    The RadiusX 4.0 Clutch Kit delivers the precision engagement and durability your CRF450X demands, whether you're navigating technical trail sections or pushing hard on the track. Rekluse's redesigned EXP assembly reduces friction while maintaining rigid...
    11300707
    SKU:
    11300707
    Availability:
    Ships Same Business Day
    Weight:
    2.73 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • REKLUSE RadiusX 4.0 Clutch - Beta RMS-8302021

    REKLUSE RadiusX 4.0 Clutch - Beta RMS-8302021

    REKLUSE

    $949.00
    If you're running a Beta dirt bike at the track or on the trail, clutch feel and power delivery directly impact your lap times and rider confidence. The REKLUSE RadiusX 4.0 Clutch replaces outdated engagement characteristics with a modern design that...
    11300708
    SKU:
    11300708
    Availability:
    Ships Same Business Day
    Weight:
    2.93 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Beta 250 RR 2018-2021 RMS-8302022

    Rekluse RadiusX 4.0 Clutch Kit for Beta 250 RR 2018-2021 RMS-8302022

    REKLUSE

    $999.00
    Modern high-performance dirt bikes demand clutch systems that can handle sustained heat and aggressive throttle inputs without compromising engagement or durability. The Rekluse RadiusX 4.0 is purpose-built for Beta 250 RR riders who refuse to compromise...
    11300709
    SKU:
    11300709
    Availability:
    Ships Same Business Day
    Weight:
    2.76 LBS
    $999.00
    Qty in Cart: 0
    Quantity:
    Price:
    $999.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Beta 350 RR 2024 RMS-8302128

    Rekluse RadiusX 4.0 Clutch Beta 350 RR 2024 RMS-8302128

    REKLUSE

    $949.00
    The Rekluse RadiusX 4.0 delivers measurable improvements in heat management and throttle response—critical for riders pushing their Beta 350 RR to its limits. Its reinforced EXP assembly and optimized friction design translate to more predictable power...
    11300710
    SKU:
    11300710
    Availability:
    Ships Same Business Day
    Weight:
    2.98 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Beta 350 RR 2024 RMS-8302025

    Rekluse RadiusX 4.0 Clutch Kit for Beta 350 RR 2024 RMS-8302025

    REKLUSE

    $999.00
    If you're running a Beta 350 RR, clutch feel and engagement directly impact your lap times and trail confidence. The Rekluse RadiusX 4.0 delivers a custom-tuned engagement curve that matches modern engine dynamics, giving you precise throttle response...
    11300711
    SKU:
    11300711
    Availability:
    Ships Same Business Day
    Weight:
    2.61 LBS
    $999.00
    Qty in Cart: 0
    Quantity:
    Price:
    $999.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Beta 250 RR 2018-2023 RMS-8302122

    Rekluse RadiusX 4.0 Clutch Kit for Beta 250 RR 2018-2023 RMS-8302122

    REKLUSE

    $999.00
    If you're running a Beta 250 RR, clutch engagement directly impacts your ability to modulate power delivery in technical terrain and maintain consistency through race runs. The Rekluse RadiusX 4.0 delivers the responsiveness and durability you need to...
    11300712
    SKU:
    11300712
    Availability:
    Ships Same Business Day
    Weight:
    2.58 LBS
    $999.00
    Qty in Cart: 0
    Quantity:
    Price:
    $999.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch for Kawasaki KX250F 2009-2020 RMS-8304040

    Rekluse RadiusX 4.0 Clutch for Kawasaki KX250F 2009-2020 RMS-8304040

    REKLUSE

    $949.00
    If you're pushing your KX250F to its limits on the track or trail, clutch responsiveness directly impacts your lap times and control. The Rekluse RadiusX 4.0 replaces vague, delayed engagement with precise, instantaneous power delivery—giving you the...
    11300714
    SKU:
    11300714
    Availability:
    Ships Same Business Day
    Weight:
    2.66 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kawasaki KX250 1994-2007 RMS-8304043

    Rekluse RadiusX 4.0 Clutch Kawasaki KX250 1994-2007 RMS-8304043

    REKLUSE

    $949.00
    The Rekluse RadiusX 4.0 Clutch delivers precise engagement control and reliability for KX250 riders who demand consistent performance in high-stress conditions. Built with reinforced internal structures and advanced friction design, this clutch system...
    11300715
    SKU:
    11300715
    Availability:
    Ships Same Business Day
    Weight:
    2.80 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Kawasaki KX450F 2016-2018 RMS-8304044

    Rekluse RadiusX 4.0 Clutch Kit for Kawasaki KX450F 2016-2018 RMS-8304044

    REKLUSE

    $949.00
    The RadiusX 4.0 Clutch delivers precise engagement control and consistent power transfer across the full RPM range, eliminating the mushy feel that costs you milliseconds on the track or trail. Rekluse's advanced EXP 4.0 wedge technology with rolling...
    11300716
    SKU:
    11300716
    Availability:
    Ships Same Business Day
    Weight:
    2.80 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kawasaki KX450F 2021-2025 RMS-8304045

    Rekluse RadiusX 4.0 Clutch Kawasaki KX450F 2021-2025 RMS-8304045

    REKLUSE

    $949.00
    If you're running a KX450F in competitive conditions, clutch modulation and heat management directly impact your lap times and consistency. The Rekluse RadiusX 4.0 delivers a refined engagement curve paired with superior cooling capacity, allowing you to...
    11300717
    SKU:
    11300717
    Availability:
    Ships Same Business Day
    Weight:
    2.79 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kawasaki KX500 1989-2004 RMS-8304060

    Rekluse RadiusX 4.0 Clutch Kawasaki KX500 1989-2004 RMS-8304060

    REKLUSE

    $949.00
    The RadiusX 4.0 clutch transforms how your KX500 responds to throttle input, delivering the precision engagement and thermal stability that separates competitive riders from the rest. If you're running high-RPM conditions or pushing your machine in...
    11300720
    SKU:
    11300720
    Availability:
    Ships Same Business Day
    Weight:
    2.93 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kawasaki KX250 2021-2024 RMS-8304140

    Rekluse RadiusX 4.0 Clutch Kawasaki KX250 2021-2024 RMS-8304140

    REKLUSE

    $999.00
    The RadiusX 4.0 is engineered for KX250 riders who demand precise throttle response and consistent power delivery across demanding race conditions. Rekluse's updated EXP assembly and rolling contact technology reduce friction and improve engagement feel,...
    11300721
    SKU:
    11300721
    Availability:
    Ships Same Business Day
    Weight:
    2.52 LBS
    $999.00
    Qty in Cart: 0
    Quantity:
    Price:
    $999.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Suzuki RM-Z450 2008-2025 RMS-8306064

    Rekluse RadiusX 4.0 Clutch Kit for Suzuki RM-Z450 2008-2025 RMS-8306064

    REKLUSE

    $949.00
    High-heat riding demands a clutch that stays responsive when temperatures spike—the RadiusX 4.0 delivers precision engagement without fade or lag. Built for modern RM-Z450 engines, this system combines a reinforced EXP assembly with optimized friction...
    11300725
    SKU:
    11300725
    Availability:
    Ships Same Business Day
    Weight:
    3.02 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit Suzuki RM-Z 250 2007-2025 RMS-8306067

    Rekluse RadiusX 4.0 Clutch Kit Suzuki RM-Z 250 2007-2025 RMS-8306067

    REKLUSE

    $949.00
    If you're running an RM-Z 250 in competitive or high-demand riding conditions, clutch feel and durability directly impact your lap times and reliability. The Rekluse RadiusX 4.0 delivers precise engagement control and sustained performance in extreme...
    11300726
    SKU:
    11300726
    Availability:
    Ships Same Business Day
    Weight:
    2.82 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Suzuki RM250 1996-2008 RMS-8306068

    Rekluse RadiusX 4.0 Clutch Kit for Suzuki RM250 1996-2008 RMS-8306068

    REKLUSE

    $949.00
    If you're running an RM250 in competitive or high-demand conditions, clutch performance directly impacts your lap times and rider control. The Rekluse RadiusX 4.0 delivers the engagement precision and thermal stability that separates consistent...
    11300727
    SKU:
    11300727
    Availability:
    Ships Same Business Day
    Weight:
    3.00 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for Suzuki RM-Z 450 2008-2025 RMS-8306070

    Rekluse RadiusX 4.0 Clutch Kit for Suzuki RM-Z 450 2008-2025 RMS-8306070

    REKLUSE

    $949.00
    The Rekluse RadiusX 4.0 delivers the precision clutch engagement that separates competitive RM-Z 450 riders from the rest. Built with advanced materials and intelligent design, this system handles extreme heat while giving you the direct power transfer...
    11300728
    SKU:
    11300728
    Availability:
    Ships Same Business Day
    Weight:
    3.26 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch for Yamaha YZ250 2002-2024 RMS-8307070

    Rekluse RadiusX 4.0 Clutch for Yamaha YZ250 2002-2024 RMS-8307070

    REKLUSE

    $949.00
    The RadiusX 4.0 Clutch is engineered for YZ250 riders who demand precise control and consistent performance across demanding terrain. Modern 2-stroke powerplants require a clutch that responds instantly to throttle input while maintaining durability...
    11300730
    SKU:
    11300730
    Availability:
    Ships Same Business Day
    Weight:
    2.88 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit for 2013-2015 Gas Gas EC 300 and 2010-2015 Yamaha YZ 250 F RMS-8307071

    Rekluse RadiusX 4.0 Clutch Kit for 2013-2015 Gas Gas EC 300 and 2010-2015 Yamaha YZ 250 F RMS-8307071

    REKLUSE

    $949.00
    The RadiusX 4.0 clutch delivers the immediate engagement and consistent power delivery that separates competitive riders from the rest. Purpose-built for the 2013-2015 Gas Gas EC 300 and 2010-2015 Yamaha YZ 250F, this kit handles extreme heat and...
    11300731
    SKU:
    11300731
    Availability:
    Ships Same Business Day
    Weight:
    2.64 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    Subtotal:
  • Rekluse RadiusX 4.0 Clutch Kit Yamaha YZ450F 2015 RMS-8307073

    Rekluse RadiusX 4.0 Clutch Kit Yamaha YZ450F 2015 RMS-8307073

    REKLUSE

    $949.00
    The Rekluse RadiusX 4.0 delivers the precise clutch engagement and thermal stability that modern YZ450F riders demand, whether you're pushing lap times or conquering technical terrain. Its redesigned internal geometry and proprietary friction alignment...
    11300732
    SKU:
    11300732
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    $949.00
    Qty in Cart: 0
    Quantity:
    Price:
    $949.00
    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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