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
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MOOSE RACING Clutch Basket M270
MOOSE RACING
$248.95Stock clutch baskets wear prematurely and generate excessive heat under sustained load, degrading friction materials and reducing engagement consistency. The MOOSE RACING M270 delivers measurably better thermal management and durability through precision...11320175- SKU:
- 11320175
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- COLOR/FINISH:
- ANODIZED
- UNITS:
- EACH
- MATERIAL:
- 6061 AIRCRAFT-GRADE ALUMINUM ALLOY
- PRODUCT NAME:
- CLUTCH BASKET
- RIDING STYLE:
- OFF-ROAD
$248.95 -
PARTS UNLIMITED 520 - Drive Chain - 118 Links T520118
PARTS UNLIMITED
$32.95A properly tensioned and maintained drive chain is critical to transferring power efficiently from your engine to the rear wheel—any slack, wear, or poor fitment will rob you of acceleration and create safety hazards. The Parts Unlimited 520 delivers...T520118- SKU:
- T520118
- Availability:
- Ships Same Business Day
- Weight:
- 3.88 LBS
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- NUMBER OF LINKS:
- 118
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 29.3 KN
- UNITS:
- EACH
- TENSILE STRENGTH IMPERIAL:
- 6600 LB
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- SEAL TYPE:
- NON-SEAL
- CHAIN SIZE:
- 520
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
PARTS UNLIMITED 520H - Drive Chain - 110 Links T520H110
PARTS UNLIMITED
$40.95A properly sized drive chain is fundamental to reliable power transmission and consistent performance across your drivetrain. The Parts Unlimited 520H delivers the durability and precision you need whether you're running a high-rpm race application or a...T520H110- SKU:
- T520H110
- Availability:
- Ships Same Business Day
- Weight:
- 4.13 LBS
- TENSILE STRENGTH IMPERIAL:
- 7450 LB
- CHAIN SIZE:
- 520
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- NUMBER OF LINKS:
- 110
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- CHAIN TYPE:
- 520 H
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH METRIC:
- 33.1 KN
$40.95 -
PARTS UNLIMITED 520H - Drive Chain - 114 Links T520H114
PARTS UNLIMITED
$42.95A reliable 520 drive chain is critical for consistent power delivery and predictable handling characteristics in racing and high-performance applications. The Parts Unlimited 520H delivers proven durability with precision manufacturing, eliminating...T520H114- SKU:
- T520H114
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- RIDING STYLE:
- UTV
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 7450 LB
- TENSILE STRENGTH METRIC:
- 33.1 KN
- CHAIN TYPE:
- 520 H
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- NUMBER OF LINKS:
- 114
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$42.95Qty in Cart: 0Quantity:Price:$42.95Subtotal: -
PARTS UNLIMITED 520H - Drive Chain - 116 Links T520H116
PARTS UNLIMITED
$44.95A reliable 520H chain is fundamental to any high-performance drivetrain, and this PARTS UNLIMITED offering delivers proven durability without compromise. Pre-cut to 116 links and packaged with a connecting link, this chain eliminates guesswork and gets...T520H116- SKU:
- T520H116
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- NUMBER OF LINKS:
- 116
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH IMPERIAL:
- 7450 LB
- UNITS:
- EACH
- CHAIN TYPE:
- 520 H
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- OFF-ROAD
- TENSILE STRENGTH METRIC:
- 33.1 KN
$44.95 -
PARTS UNLIMITED 520H - Drive Chain - 118 Links T520H118
PARTS UNLIMITED
$44.95A properly sized, reliable drive chain is fundamental to consistent power transfer and component longevity in any drivetrain system. The Parts Unlimited 520H delivers predictable performance at a price point that doesn't force compromises on material...T520H118- SKU:
- T520H118
- Availability:
- Ships Same Business Day
- Weight:
- 4.28 LBS
- CHAIN SIZE:
- 520
- CHAIN TYPE:
- 520 H
- COLOR/FINISH:
- BLACK
- MASTER LINK CONNECTOR:
- CLIP
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- SEAL TYPE:
- NON-SEAL
- TENSILE STRENGTH METRIC:
- 33.1 KN
- MATERIAL:
- STEEL
- MAXIMUM ENGINE DISPLACEMENT (STREET):
- 250 CC
- NUMBER OF LINKS:
- 118
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- MAXIMUM ENGINE DISPLACEMENT (OFFROAD):
- 250 CC
- PRODUCT NAME:
- DRIVE CHAIN
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TENSILE STRENGTH IMPERIAL:
- 7450 LB
$44.95Qty in Cart: 0Quantity:Price:$44.95Subtotal: -
PARTS UNLIMITED Single Bearing - 7/8 Radiused - With Locking Collar SA205-14
PARTS UNLIMITED
$13.06Reliable bearing performance is critical when you're building or maintaining high-performance equipment—a quality bearing directly impacts durability and reduces downtime. The PARTS UNLIMITED Single Bearing with locking collar delivers precision...AL20578- SKU:
- AL20578
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- INSIDE DIAMETER:
- 22,2 MM (7/8')
- OUTSIDE DIAMETER:
- 52 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- STYLE:
- RADIUSED
- THICKNESS:
- 31,75 MM (1-1/4')
- TYPE:
- DOUBLE SEAL
$13.06Qty in Cart: 0Quantity:Price:$13.06Subtotal: -
PARTS UNLIMITED Rear Yamaha Sprocket - 420 - 48 Tooth 122-25448-10
PARTS UNLIMITED
$24.33A worn or damaged rear sprocket directly impacts chain wear, acceleration response, and overall drivetrain efficiency on your Yamaha. This OEM-specification replacement restores factory performance characteristics and ensures reliable engagement with...K223603D- SKU:
- K223603D
- Availability:
- Ships Same Business Day
- Weight:
- 1.88 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
$24.33 -
MOOSE RACING Clutch Master Cylinder Rebuild Kit 18-4014
MOOSE RACING
$35.95A leaking clutch master cylinder compromises both safety and performance, reducing hydraulic pressure and causing inconsistent pedal feel. This MOOSE RACING rebuild kit delivers a complete seal solution, restoring factory integrity without the cost of...11321465- SKU:
- 11321465
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER
$35.95 -
MOOSE RACING Pro Chain Guide - Yamaha - Blue PX1393
MOOSE RACING
$92.95A quality chain guide protects your sprockets and frame from debris while reducing wear on your drivetrain—especially critical if you're pushing hard on the track or trail. The MOOSE RACING Pro Chain Guide combines durable construction with hassle-free...12310806- SKU:
- 12310806
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
- MOUNTING POSITION:
- LOWER
- PRODUCT NAME:
- CHAIN GUIDE
- COLOR/FINISH:
- BLUE
- MATERIAL:
- POLYETHYLENE
- RIDING STYLE:
- OFF-ROAD
$92.95 -
MOOSE RACING Aluminum Chain Guide - Kawasaki 01-010CG
MOOSE RACING
$53.95The stock chain guide on your Kawasaki won't survive serious trail or track abuse—rocks, logs, and hard impacts will crack it in short order. This MOOSE RACING aluminum guide replaces that weak point with aircraft-grade durability, keeping your chain...12310419- SKU:
- 12310419
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- DRIVE CHAIN
- UNITS:
- EACH
- MATERIAL:
- AIRCRAFT ALUMINUM
- PRODUCT NAME:
- CHAIN GUIDE
$53.95Qty in Cart: 0Quantity:Price:$53.95Subtotal: -
MOOSE RACING Aluminum Chain Guide - Yamaha 01-011CG
MOOSE RACING
$53.95Stock chain guides are vulnerable to damage from trail debris—rocks, logs, and roots will crack them under pressure. The MOOSE RACING Aluminum Chain Guide replaces that weak link with aircraft-grade aluminum that absorbs impact without failure, keeping...12310420- SKU:
- 12310420
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- AIRCRAFT ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE CHAIN
- UNITS:
- EACH
- PRODUCT NAME:
- CHAIN GUIDE
$53.95 -
MOOSE RACING Aluminum Chain Guide - Kawasaki/Suzuki/Yamaha 01-015CG
MOOSE RACING
$53.95Stock chain guides are engineered for street riding, not the punishment of trail or track use. This MOOSE RACING aluminum guide replaces that weak link with aircraft-grade durability, absorbing hard impacts from rocks and logs without cracking or bending...12310424- SKU:
- 12310424
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- AIRCRAFT ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE CHAIN
- UNITS:
- EACH
$53.95 -
MOOSE RACING Aluminum Chain Guide - KTM 01-016CG
MOOSE RACING
$53.95The stock chain guide on your KTM is a liability waiting to happen—one solid hit from a rock or log will leave you stranded. This MOOSE RACING aluminum guide replaces that fragile OEM component with aircraft-grade durability, absorbing impacts that would...12310425- SKU:
- 12310425
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- AIRCRAFT ALUMINUM
- TYPE:
- DRIVE CHAIN
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$53.95 -
MOOSE RACING Aluminum Chain Guide - Gas Gas 01-017CG
MOOSE RACING
$53.95Stock chain guides are vulnerable to impact damage from rocks, logs, and trail debris—failures that leave you stranded and facing costly repairs. The MOOSE RACING Aluminum Chain Guide replaces that weak link with aircraft-grade aluminum construction...12310426- SKU:
- 12310426
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MATERIAL:
- AIRCRAFT ALUMINUM
- TYPE:
- DRIVE CHAIN
- UNITS:
- EACH
- PRODUCT NAME:
- CHAIN GUIDE
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$53.95 -
MOOSE RACING Aluminum Chain Guide Mount - Gas Gas 01-017BRK
MOOSE RACING
$20.95Chain guide wear compromises power transfer and creates expensive replacement cycles. The MOOSE RACING Aluminum Chain Guide Mount absorbs impacts from rocks and logs without cracking, keeping your drivetrain aligned and protected through aggressive trail...01017BRK- SKU:
- 01017BRK
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- MATERIAL:
- AIRCRAFT ALUMINUM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CHAIN GUIDE
- PRODUCT NAME:
- MOUNT
- UNITS:
- EACH
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal: -
MOOSE RACING Chain Roller - 34 mm x 23 mm - Black 79-5010
MOOSE RACING
$23.95Excessive drivetrain friction translates directly to lost horsepower and accelerated wear on your chain and sprockets. The MOOSE RACING Chain Roller cuts through that inefficiency with a precision-engineered polyurethane design that maintains consistent...12310038- SKU:
- 12310038
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- OUTSIDE DIAMETER METRIC:
- 34 MM
- INSIDE DIAMETER METRIC:
- 8 MM
- TYPE:
- SEALED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- POLYURETHANE
- MOUNTING POSITION:
- UPPER
- PRODUCT NAME:
- CHAIN ROLLER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- WIDTH METRIC:
- 23 MM
$23.95 -
MOOSE RACING Kickstarter 80-0342-00-60
MOOSE RACING
$184.79A reliable kickstarter mechanism is critical to engine starting reliability, especially in high-performance or vintage racing applications where consistent ignition is non-negotiable. The MOOSE RACING Kickstarter combines OEM-exact dimensions with...11120048- SKU:
- 11120048
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK ANODIZED
- PRODUCT NAME:
- KICKSTARTER
- UNITS:
- EACH
- MATERIAL:
- 6061 ALUMINUM
$184.79 -
MOOSE RACING Dual Sprocket MSE - Black - 51-Tooth 1210-251-51-10X
MOOSE RACING
$69.95A rear sprocket is one of the most wear-intensive components on your drivetrain, and choosing the right one directly impacts your power delivery and longevity. The MOOSE RACING Dual Sprocket MSE combines a lightweight 7075 T6 aluminum inner ring with a...12101484- SKU:
- 12101484
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- TYPE:
- DRIVE
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
MOOSE RACING Dual Sprocket MSE - Silver - 51-Tooth 1210-251-51-11X
MOOSE RACING
$69.95The MOOSE RACING Dual Sprocket MSE delivers the weight savings of aluminum with the durability of steel—a critical advantage for riders who demand reliable power transfer without sacrificing acceleration. The hybrid construction keeps your bike nimble...12101485- SKU:
- 12101485
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- DUAL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM INNER RING
- CHAIN SIZE:
- 520
- MATERIAL:
- HEAVY-DUTY STEEL OUTER RING
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$69.95
