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
-
Renthal Twinring Rear Sprocket 48T Black 1500-520-48GPBK
RENTHAL
$142.50Off-road performance demands a sprocket that can handle extreme conditions without adding unnecessary weight to your drivetrain. The Renthal Twinring rear sprocket combines lightweight 7075 T-6 aluminum with durable electro-less nickel-coated steel to...12101344- SKU:
- 12101344
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
$142.50 -
Renthal Rear Sprocket 48T Orange 520 Chain 224U-520-48GPOR
RENTHAL
$104.61If you're serious about off-road performance, your sprocket choice directly impacts acceleration, weight distribution, and drivetrain longevity. The Renthal 48T rear sprocket delivers a measurable 66% weight reduction over steel while maintaining the...12112474- SKU:
- 12112474
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 48
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$104.61 -
Renthal Ultralight Rear Sprocket 38T Orange 491-415-38P-OR
RENTHAL
$104.61Reducing unsprung weight is critical for off-road acceleration and handling, and the Renthal Ultralight Rear Sprocket delivers a measurable 66% weight savings over steel without sacrificing durability. Built from 7075-T6 aluminum and precision...12112490- SKU:
- 12112490
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- TOOTH COUNT:
- 38
- CHAIN SIZE:
- 415
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
$104.61 -
Renthal Front Sprocket 13T 520 Chain Kawasaki KX250F 2004-2005 Suzuki RM-Z250 2004-2006 438--520-13GP
RENTHAL
$37.95A lighter rotating mass at the front sprocket directly translates to quicker throttle response and reduced rotational inertia—critical advantages when you're pushing hard on technical terrain. The Renthal 13T is precision-engineered with case-hardened...12120022- SKU:
- 12120022
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- TYPE:
- FRONT
$37.95 -
Renthal Front Sprocket 14-Tooth 420 Chain KTM 65 SX 1998-2008 307--420-14GP
RENTHAL
$37.95Lightweight durability and mud-shedding reliability are critical on the 65 SX trail. This Renthal 14-tooth front sprocket eliminates rotational weight that slows acceleration while maintaining the case-hardened steel strength demanded by aggressive...12120044- SKU:
- 12120044
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- FRONT
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 14
$37.95 -
Renthal Front Sprocket 13T 520 for Kawasaki KX250F 2006-2024 453--520-13GP
RENTHAL
$37.95Reduce unsprung weight while maintaining durability where it counts most—your drivetrain. The Renthal 13T front sprocket delivers a measurable 10-15% weight savings through ultralight design, translating to sharper acceleration and more responsive...12120203- SKU:
- 12120203
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- CHAIN SIZE:
- 520
- TYPE:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
$37.95 -
Renthal 13 Tooth Ultralight Front Sprocket for Kawasaki 452U-520-13P
RENTHAL
$47.95A lightweight front sprocket is one of the most effective ways to improve throttle response and reduce rotational mass on your Kawasaki. The Renthal 13-Tooth Ultralight sheds 10-15% weight compared to OEM designs while the case-hardened 655M13 steel...12120209- SKU:
- 12120209
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- FRONT
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
$47.95 -
Renthal 48-Tooth Green Rear Sprocket for Kawasaki 112U52048GEGN
RENTHAL
$104.61A worn or undersized rear sprocket limits your acceleration and forces your engine to work harder than necessary. The Renthal 48-Tooth Green Rear Sprocket delivers the strength of steel with a 66% weight reduction, translating directly to quicker...12111345- SKU:
- 12111345
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GREEN
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
$104.61Qty in Cart: 0Quantity:Price:$104.61Subtotal: -
Renthal 51-Tooth Green Rear Sprocket for Kawasaki 112U52051GEGN
RENTHAL
$104.61If you're running a 51-tooth rear sprocket on your Kawasaki, the Renthal green aluminum option cuts weight where it counts—improving throttle response and handling without compromising durability. The 7075-T6 aluminum construction delivers strength...12111348- SKU:
- 12111348
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- 7075-T6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- GREEN
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$104.61 -
Renthal R1 415 Works Chain 112 Links Gold C445
RENTHAL
$64.55A quality chain is the backbone of reliable power transfer in off-road racing, and the Renthal R1 Works delivers the durability and precision needed to handle the most demanding motocross and trail conditions. Shot-peened steel plates and pre-formed...12200413- SKU:
- 12200413
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- NUMBER OF LINKS:
- 112
- PRODUCT NAME:
- DRIVE CHAIN
- CHAIN TYPE:
- 415 R1
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 100 CC
- SEAL TYPE:
- NON-SEAL
- CHAIN SIZE:
- 415
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$64.55 -
Renthal 428 R1 Works Chain 140 Links Gold C277
RENTHAL
$106.83If you're running a high-powered 100cc mini racing machine, chain performance directly impacts your lap times and reliability. The Renthal 428 R1 Works Chain delivers the tensile strength and low-friction design needed to maximize power transmission...12210017- SKU:
- 12210017
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- CHAIN SIZE:
- 428
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 4497 LB
- TENSILE STRENGTH METRIC:
- 20 KN
- MODEL:
- R1
- NUMBER OF LINKS:
- 140
- PRODUCT NAME:
- DRIVE CHAIN
- CHAIN TYPE:
- 428 R1
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 150 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$106.83 -
Renthal Front Sprocket 15T 420 Chain Honda CRF150R 2007-2026 461--420-15GP
RENTHAL
$37.95The Renthal 15T Front Sprocket is engineered to deliver measurable gains in acceleration and chain longevity on your Honda CRF150R. By shaving 10-15% off unsprung weight through ultralight construction, you'll notice immediate improvements in throttle...12120286- SKU:
- 12120286
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- CHAIN SIZE:
- 420
- TOOTH COUNT:
- 15
- TYPE:
- FRONT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal: -
Renthal 12 Tooth Front Sprocket for KTM 50 SX 2009-2023 481--415-12P
RENTHAL
$47.95Sprocket wear directly impacts acceleration, chain longevity, and overall drivetrain efficiency on your KTM 50 SX. The Renthal 12-tooth front sprocket delivers measurable performance gains through precision engineering and material science—reducing...12120827- SKU:
- 12120827
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 12
- TYPE:
- FRONT
- CHAIN SIZE:
- 415
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$47.95 -
Renthal 14-Tooth Front Sprocket for KTM 85 SX 17/14 2010-2025 482--428-14GP
RENTHAL
$37.95A worn or incorrect front sprocket directly impacts acceleration, top-end speed, and chain wear on your KTM 85 SX. The Renthal 14-tooth sprocket delivers precision engineering with case-hardened durability, self-cleaning mud grooves that resist wear, and...12120828- SKU:
- 12120828
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TOOTH COUNT:
- 14
- TYPE:
- FRONT
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
$37.95 -
Renthal Front Sprocket 13T 520 Chain Suzuki RM-Z250 2013-2017 497-520-13GP
RENTHAL
$37.95A lightweight front sprocket is critical for RM-Z250 performance—reducing rotational mass directly improves throttle response and acceleration out of corners. Renthal's 13-tooth design delivers the precision engineering and durability needed for...12121298- SKU:
- 12121298
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- TYPE:
- FRONT
$37.95 -
Renthal Front Sprocket 13T 520 Chain Steel 501-520-13GP
RENTHAL
$37.95A lightweight front sprocket is one of the most effective ways to reduce unsprung weight and improve throttle response on your motorcycle. The Renthal 13T 520 sprocket delivers measurable performance gains through precision engineering and materials...12121438- SKU:
- 12121438
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- TYPE:
- FRONT
- UNITS:
- EACH
$37.95 -
Renthal 13-Tooth Ultralight Front Sprocket 520 Chain 501U-520-13GP
RENTHAL
$47.95Whether you're pushing hard on the track or tackling technical terrain, unsprung weight directly impacts your bike's responsiveness and acceleration. The Renthal 13-Tooth Ultralight Front Sprocket shaves 10-15% off your drivetrain's rotational mass while...12121440- SKU:
- 12121440
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- TYPE:
- FRONT
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$47.95 -
Renthal 13-Tooth Front Sprocket 520 Chain Honda CRF450L CRF450RL CRF450X 508--520-13GP
RENTHAL
$37.95Gearing matters when you're chasing performance on the trail or track. The Renthal 13-tooth front sprocket reduces rotational mass by 10-15%, delivering sharper acceleration and more responsive handling—without sacrificing the durability you need in...12121574- SKU:
- 12121574
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- 655M13 NICKEL CHROMIUM STEEL
- RIDING STYLE:
- STREET
- TYPE:
- FRONT
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 13
- UNITS:
- EACH
$37.95 -
Renthal 520 R4 ATV Z-Ring Chain 100 Links Gold C302
RENTHAL
$163.36ATV chains endure constant shock loads and abrasive conditions that demand more than standard roller chain construction. The Renthal 520 R4 delivers extended service life through patented Z-Ring seals and quad-riveted pins, keeping your machine reliable...12240023- SKU:
- 12240023
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- SEAL TYPE:
- Z-RING
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 R4 ATV
- TENSILE STRENGTH METRIC:
- 35 KN
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MODEL:
- R4
- TENSILE STRENGTH IMPERIAL:
- 7868 LB
- UNITS:
- EACH
- NUMBER OF LINKS:
- 100
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
$163.36 -
Renthal 520 R4 ATV Z-Ring Chain 110 Links Gold C307
RENTHAL
$178.15When you're pushing your ATV to its limits, chain failure isn't an option. The Renthal 520 R4 combines proven durability engineering with sealed protection to deliver consistent power transfer through the toughest terrain without premature wear or...12240024- SKU:
- 12240024
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
- COLOR/FINISH:
- GOLD
- MASTER LINK CONNECTOR:
- CLIP
- MODEL:
- R4
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 R4 ATV
- TENSILE STRENGTH IMPERIAL:
- 7868 LB
- TENSILE STRENGTH METRIC:
- 35 KN
- NUMBER OF LINKS:
- 110
- SEAL TYPE:
- Z-RING
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$178.15
