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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- Qty in Cart
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- Price
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MOOSE RACING Steel Rear Sprocket - Honda - 49 Tooth 1204ST-49
MOOSE RACING
$26.95A properly matched rear sprocket is fundamental to optimizing your Honda's acceleration, top-end speed, and overall drivetrain efficiency. The MOOSE RACING 49-tooth steel sprocket delivers the...12102741- SKU:
- 12102741
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
MOOSE RACING Steel Rear Sprocket - Honda - 50 Tooth 1204ST-50
MOOSE RACING
$26.95A worn or incorrect sprocket directly impacts your Honda's acceleration, fuel efficiency, and drivetrain wear. The MOOSE RACING 50-tooth steel rear sprocket delivers aggressive low-end torque and...12102742- SKU:
- 12102742
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
UFO Chain Slider - Black - Gas Gas KT05018#001
UFO
$19.95Chain slap against your swingarm is an inevitable wear problem on the track or trail—and it compounds over time, compromising structural integrity and forcing costly repairs. The UFO Chain Slider...12311579- SKU:
- 12311579
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$19.95 -
UFO Chain Guide - Orange - KTM KT05017#127
UFO
$24.95A worn or damaged chain guide compromises power delivery and risks catastrophic drivetrain failure on the track or trail. The UFO Chain Guide replaces your OEM component with a long-wearing...12311578- SKU:
- 12311578
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$24.95Qty in Cart: 0Quantity:Price:$24.95Subtotal: -
MOOSE RACING Clutch Friction Plates M70-5356-8
MOOSE RACING
$81.95If you're running a motorcycle that demands consistent power delivery under load, clutch fade will kill your performance and reliability. The MOOSE RACING M70-5356-8 friction plates eliminate that...11313854- SKU:
- 11313854
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$81.95 -
MOOSE RACING Clutch Friction Plates M70-5473-8
MOOSE RACING
$81.95If you're running a high-performance clutch system, your friction plates are doing the hardest work—transferring peak torque without slip or fade. The MOOSE RACING M70-5473-8 friction plates are...11313855- SKU:
- 11313855
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$81.95Qty in Cart: 0Quantity:Price:$81.95Subtotal: -
RK 520 MXZ5 - Chain - 114 Links - Gold GB520MXZ5-114
RK
$143.63If you're pushing your bike to the limit on the track, chain durability isn't negotiable—and the RK 520 MXZ5 is built for exactly that demand. Its chromoly steel construction and reinforced chromized...12210422- SKU:
- 12210422
- Availability:
- Ships Same Business Day
- Weight:
- 3.69 LBS
$143.63Qty in Cart: 0Quantity:Price:$143.63Subtotal: -
ACERBIS Chain Guide - Black - Yamaha 2979570001
ACERBIS
$54.95A worn or damaged chain guide compromises power delivery and risks catastrophic chain failure mid-ride. The ACERBIS Chain Guide restores proper chain alignment and tension, ensuring consistent...05203858- SKU:
- 05203858
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
$54.95 -
ACERBIS Chain Slider - Black - YZ85 2976190001
ACERBIS
$32.95Chain wear and swingarm damage are expensive problems that start small. ACERBIS chain sliders are engineered to absorb the friction and lateral movement your chain creates, protecting your swingarm...05203860- SKU:
- 05203860
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
UFO Chain Guide - Black - YZ 250F/450F YA04898#001
UFO
$24.95A worn or damaged chain guide compromises power delivery and risks catastrophic drivetrain failure on the track or trail. The UFO Chain Guide delivers OEM-equivalent fitment with superior...12311592- SKU:
- 12311592
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
$24.95 -
WORKS CONNECTION Elite Axle Block Kit - Orange - Gas Gas/Husqvarna/KTM 17-264
WORKS CONNECTION
$108.95Stock fixed axle blocks limit your bike's ability to maintain consistent chain tension and true alignment through aggressive cornering and acceleration. The WORKS CONNECTION Elite Axle Block Kit...12311669- SKU:
- 12311669
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$108.95Qty in Cart: 0Quantity:Price:$108.95Subtotal: -
Renthal Rear Aluminum Sprocket 50 Tooth for Kawasaki 112U-520-50GEHA
RENTHAL
$103.95If you're running a 520 chain setup on your Kawasaki, upgrading to an aluminum rear sprocket directly improves acceleration and reduces the rotational mass slowing your bike down. The Renthal...12112769- SKU:
- 12112769
- Availability:
- Ships Same Business Day
- Weight:
- 1.02 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
Renthal Rear Aluminum Sprocket 51 Tooth for Kawasaki 112U-520-51GEHA
RENTHAL
$103.95If you're running a Kawasaki dirt bike or off-road machine, your sprocket choice directly impacts acceleration, handling, and overall drivetrain efficiency. The Renthal 51-tooth rear sprocket shaves...12112770- SKU:
- 12112770
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
Renthal Rear Aluminum Sprocket 50 Tooth for Honda CRF250R CRF450R CRF450X 154U-520-50GRHA
RENTHAL
$103.95Shaving 66% off your sprocket weight directly improves throttle response, acceleration, and fuel efficiency—critical gains for both track days and competitive racing. The hard-anodized 7075 T6...12112780- SKU:
- 12112780
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
Renthal Rear Aluminum Sprocket 51 Tooth for Honda CR125R 1983-2007 154U-520-51GRHA
RENTHAL
$103.95Shave unsprung weight while maximizing power delivery to the rear wheel—the Renthal 51-tooth rear sprocket cuts down rotational mass by 66% compared to steel alternatives, directly translating to...12112781- SKU:
- 12112781
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$103.95Qty in Cart: 0Quantity:Price:$103.95Subtotal: -
UFO Chain Slider - Green - KX 450 KA04767#026
UFO
$19.95Your swingarm takes a beating every time you ride—chain abrasion will eventually score the aluminum and compromise structural integrity. The UFO Chain Slider is a direct-fit protective guard that...12311704- SKU:
- 12311704
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
REKLUSE RadiusCX 4.0 Clutch - CRF450 RMS-8901102
REKLUSE
$1,549.00If you're pushing your CRF450 to its limits, clutch feel and reliability become non-negotiable. The Rekluse RadiusCX 4.0 delivers the responsive engagement and consistent performance you need across...11300774- SKU:
- 11300774
- Availability:
- Ships Same Business Day
- Weight:
- 5.69 LBS
$1,549.00 -
Rekluse RadiusCX 4.0 Clutch Kit for Honda CRF450X 2019-2025 RMS-8901119
REKLUSE
$1,499.00The Rekluse RadiusCX 4.0 replaces the guesswork from clutch engagement, delivering predictable power delivery and precise control in high-heat conditions. Whether you're pushing a CRF450X hard on the...11300775- SKU:
- 11300775
- Availability:
- Ships Same Business Day
- Weight:
- 5.55 LBS
$1,499.00 -
Rekluse RadiusX 4.0 Clutch Kit for 2024 KTM 250 EXC-F Six Days RMS-8313080
REKLUSE
$1,079.00The Rekluse RadiusX 4.0 Clutch delivers the engagement precision and durability your 2024 KTM 250 EXC-F demands, whether you're tackling technical terrain or pushing lap times. By optimizing power...11300751- SKU:
- 11300751
- Availability:
- Ships Same Business Day
- Weight:
- 3.02 LBS
$1,079.00 -
Rekluse RadiusX 4.0 Clutch Kit Honda CRF250R 2022-2025 RMS-8301101
REKLUSE
$979.00If you're running a CRF250R and want clutch engagement that matches your throttle input without lag or slipping, the Rekluse RadiusX 4.0 is the upgrade that delivers. Built with high-temperature...11300704- SKU:
- 11300704
- Availability:
- Ships Same Business Day
- Weight:
- 2.93 LBS
$979.00
