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!
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- Price
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Renthal Rear Aluminum Sprocket 48T 520 Chain Yamaha 150U-520-48GBHA
RENTHAL
$103.95If you're running a 520 chain setup on your Yamaha dirt bike, your sprocket choice directly impacts acceleration response and overall drivetrain efficiency. The Renthal 48T aluminum sprocket cuts unsprung weight by two-thirds compared to steel...12112774- SKU:
- 12112774
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
Renthal Rear Sprocket 51 Tooth Aluminum for Yamaha 150U-520-51GBHA
RENTHAL
$103.95Reducing unsprung weight directly improves acceleration and handling—two critical factors that separate competitive setups from stock configurations. The Renthal 51-tooth rear sprocket cuts weight by 66% compared to steel while maintaining the strength...12112777- SKU:
- 12112777
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$103.95 -
Renthal Rear Sprocket 48 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-48GPHA
RENTHAL
$103.95Shave critical rotational mass without compromising durability or power delivery. The Renthal 48-tooth rear sprocket cuts 66% of the weight compared to steel, translating to faster acceleration, quicker throttle response, and reduced strain on your...12112782- SKU:
- 12112782
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$103.95 -
Renthal Rear Sprocket 49 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-49GPHA
RENTHAL
$103.95Shaving unsprung weight off your drivetrain directly improves throttle response and handling—especially critical when you're pushing hard through technical terrain. The Renthal 49-tooth rear sprocket delivers that advantage through CNC-machined 7075 T6...12112783- SKU:
- 12112783
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$103.95 -
Renthal Rear Sprocket 50 Tooth Aluminum for KTM Husqvarna Gas Gas 224U-520-50GPHA
RENTHAL
$103.95If you're running a 50-tooth rear sprocket, weight matters—every gram impacts acceleration and handling. The Renthal 7075 T6 aluminum chainwheel delivers a measurable 66% weight reduction over steel while maintaining the precision engineering needed for...12112784- SKU:
- 12112784
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
T.M. DESIGNWORKS Chain Guide - Black - YZ 450 F RCG-YZ4-BK
T.M. DESIGNWORKS
$102.95A quality chain guide is essential for protecting your drivetrain during aggressive riding and high-speed racing. The T.M. DESIGNWORKS guide uses a proprietary RMS (Return Memory System) plastic that self-centers after impacts, preventing chain...12311671- SKU:
- 12311671
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$102.95 -
T.M. DESIGNWORKS Chain Guide - Blue - YZ 450 F RCG-YZ4-BU
T.M. DESIGNWORKS
$102.95Chain slap and deflection cost you lap time and durability—especially on a demanding machine like the YZ 450 F. The T.M. DESIGNWORKS Chain Guide combines advanced polymer engineering with race-proven design to keep your chain tracking perfectly under...12311672- SKU:
- 12311672
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$102.95 -
T.M. DESIGNWORKS Chain Guide/Slider - Black - YZ 450 F YCP-OR9-BK
T.M. DESIGNWORKS
$189.95A worn or damaged chain guide system compromises power delivery and risks catastrophic drivetrain failure on the track or trail. The T.M. Designworks Chain Guide/Slider kit restores precise chain alignment and absorbs impact forces that stock components...12311673- SKU:
- 12311673
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$189.95 -
T.M. DESIGNWORKS Chain Guide/Slider - Blue - YZ 450 F YCP-OR9-BU
T.M. DESIGNWORKS
$189.95Chain slap and wear are inevitable on high-demand dirt bikes—unless you have proper protection at every contact point. The T.M. DESIGNWORKS Chain Guide/Slider system eliminates noise, reduces chain degradation, and keeps your drivetrain aligned under...12311674- SKU:
- 12311674
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
$189.95 -
Rekluse Radius CX 4.0 Clutch Kit Suzuki RMZ 450 2008-2025 RMS-8906064
REKLUSE
$1,449.00The Rekluse Radius CX 4.0 clutch transforms how your RMZ 450 responds to throttle input, delivering a more connected feel and measurable improvement in power delivery across the entire RPM band. Modern dirt bike engines demand precision engagement...11300794- SKU:
- 11300794
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
$1,449.00 -
Rekluse RadiusCX 4.0 Clutch Kit KTM 250 XC-W 2023-2025 RMS-8913192
REKLUSE
$1,499.00If you're running a KTM 250 XC-W in competitive or high-demand conditions, your clutch is the critical link between engine output and traction control. The Rekluse RadiusCX 4.0 delivers measurable improvements in engagement response, thermal stability,...11300825- SKU:
- 11300825
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
$1,499.00 -
Rekluse RadiusCX 4.0 Clutch for Honda CRF450R 2025 RMS-8913199
REKLUSE
$1,599.00The Rekluse RadiusCX 4.0 Clutch delivers the responsive engagement and heat tolerance that high-performance CRF450R riders demand. Whether you're pushing hard on the track or tackling technical terrain, this clutch's refined design and proprietary...11300828- SKU:
- 11300828
- Availability:
- Ships Same Business Day
- Weight:
- 4.94 LBS
$1,599.00 -
Rekluse RadiusX 4.0 Clutch Honda CRF450R 2002-2024 RMS-8301001
REKLUSE
$949.00The RadiusX 4.0 clutch delivers precise engagement and consistent power transfer across the entire RPM range, critical for maintaining traction and control whether you're trail riding or pushing hard on the track. Built with reinforced internals and...11300690- SKU:
- 11300690
- Availability:
- Ships Same Business Day
- Weight:
- 2.58 LBS
$949.00 -
Rekluse RadiusX 4.0 Clutch Honda CRF450R 2002-2024 RMS-8301009
REKLUSE
$949.00The Rekluse RadiusX 4.0 delivers the clutch control and heat management serious Honda CRF450R riders demand, whether you're pushing hard on the track or tackling technical terrain. Its redesigned EXP assembly and advanced wedge mechanism provide direct...11300691- SKU:
- 11300691
- Availability:
- Ships Same Business Day
- Weight:
- 2.82 LBS
$949.00 -
Rekluse RadiusX 4.0 Clutch Honda CRF450R 2013-2016 RMS-8301010
REKLUSE
$949.00If you're running a CRF450R in competitive or high-demand riding conditions, clutch modulation and durability directly impact your lap times and reliability. The Rekluse RadiusX 4.0 delivers a refined engagement curve and heat-resistant construction that...11300692- SKU:
- 11300692
- Availability:
- Ships Same Business Day
- Weight:
- 2.97 LBS
$949.00 -
REKLUSE RadiusX 4.0 Clutch - CRF250R RMS-8301016
REKLUSE
$949.00The REKLUSE RadiusX 4.0 Clutch transforms how your CRF250R responds off the line and through mid-range transitions. If you're running aggressive suspension tuning or pushing higher RPMs, stock clutch engagement can feel unpredictable—this upgrade...11300698- SKU:
- 11300698
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
$949.00 -
Rekluse RadiusCX 4.0 Clutch for Honda CRF250R 2004-2024 RMS-8901016
REKLUSE
$1,449.00If you're running a CRF250R in competitive or high-demand riding conditions, clutch modulation and heat management directly impact your lap times and bike reliability. The Rekluse RadiusCX 4.0 delivers precise power transfer with reduced lever effort,...11300770- SKU:
- 11300770
- Availability:
- Ships Same Business Day
- Weight:
- 4.72 LBS
$1,449.00 -
Rekluse RadiusCX 4.0 Clutch Kit for Honda CRF250R 2022-2025 RMS-8901101
REKLUSE
$1,449.00The RadiusCX 4.0 is engineered for riders who demand precise throttle control and reliability in extreme conditions. Its redesigned EXP assembly and optimized friction materials deliver improved cooling and a more connected lever feel, giving you the...11300773- SKU:
- 11300773
- Availability:
- Ships Same Business Day
- Weight:
- 4.90 LBS
$1,449.00 -
Rekluse RadiusCX 4.0 Clutch Beta 250 RR 2013-2017 RMS-8902021
REKLUSE
$1,499.00The RadiusCX 4.0 Clutch delivers precise power transfer and consistent engagement across the entire RPM range, eliminating chattering and slippage that compromise acceleration and control. Built with Rekluse's proven EXP technology, this clutch handles...11300776- SKU:
- 11300776
- Availability:
- Ships Same Business Day
- Weight:
- 6.10 LBS
$1,499.00Qty in Cart: 0Quantity:Price:$1,499.00Subtotal: -
Rekluse RadiusCX 4.0 Clutch Kit for Kawasaki KX450F 2021-2025 RMS-8904047
REKLUSE
$1,449.00If you're running a KX450F in high-stress racing conditions, clutch feel and heat management directly impact your lap times and consistency. The Rekluse RadiusCX 4.0 delivers a more responsive engagement curve and superior thermal stability, giving you...11300789- SKU:
- 11300789
- Availability:
- Ships Same Business Day
- Weight:
- 5.52 LBS
$1,449.00
