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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PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 13144-1005
PARTS UNLIMITED
$12.19All our front sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fitK222740- SKU:
- K222740
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
$12.19 -
PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 13144-1022
PARTS UNLIMITED
$8.11All our front sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fitK222742- SKU:
- K222742
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 14
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
$8.11 -
PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 13144-1023
PARTS UNLIMITED
$7.09All our front sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fitK222747- SKU:
- K222747
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- CHAIN SIZE:
- 420
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- PRODUCT NAME:
- SPROCKET
$7.09 -
PARTS UNLIMITED Countershaft Sprocket - 15-Tooth 13144-1024
PARTS UNLIMITED
$7.09All our front sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fitK222748- SKU:
- K222748
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- RAW
- TOOTH COUNT:
- 15
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 420
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$7.09 -
PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 13144-1027
PARTS UNLIMITED
$13.21All our front sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fitK222765- SKU:
- K222765
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- TOOTH COUNT:
- 13
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- OFF-ROAD
$13.21 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 49 Tooth 41201-430-810
PARTS UNLIMITED
$45.85All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223501J- SKU:
- K223501J
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- TYPE:
- DRIVE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NATURAL
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
$45.85 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 41 Tooth 41201-MG2-000
PARTS UNLIMITED
$41.77All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223501L- SKU:
- K223501L
- Availability:
- Ships Same Business Day
- Weight:
- 1.63 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 41
- UNITS:
- EACH
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
$41.77 -
PARTS UNLIMITED Rear Honda Sprocket - 428 - 50 Tooth 41200-427-670
PARTS UNLIMITED
$30.55All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223501Z- SKU:
- K223501Z
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 428
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$30.55 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 54 Tooth 41205-KA4-701
PARTS UNLIMITED
$44.83All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223502K- SKU:
- K223502K
- Availability:
- Ships Same Business Day
- Weight:
- 2.88 LBS
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 54
- TYPE:
- DRIVE
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
$44.83 -
PARTS UNLIMITED Rear Honda Sprocket - 420 - 47 Tooth 41201-GC4-000
PARTS UNLIMITED
$26.47All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223502P- SKU:
- K223502P
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 47
$26.47 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 51 Tooth 41201-KA3-710
PARTS UNLIMITED
$47.43All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223502S- SKU:
- K223502S
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DRIVE
- UNITS:
- EACH
$47.43 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 50 Tooth 41201KG0000-50T
PARTS UNLIMITED
$44.83All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223502V- SKU:
- K223502V
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NATURAL
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 50
- TYPE:
- DRIVE
$44.83 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 42 Tooth 41201KFO000-42T
PARTS UNLIMITED
$30.55All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223503B- SKU:
- K223503B
- Availability:
- Ships Same Business Day
- Weight:
- 1.63 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 42
- COLOR/FINISH:
- NATURAL
- TYPE:
- DRIVE
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
$30.55 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 48 Tooth 41201-MG3-000
PARTS UNLIMITED
$47.89All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223503D- SKU:
- K223503D
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- TYPE:
- DRIVE
$47.89 -
PARTS UNLIMITED Rear Honda Sprocket - 420 - 49 Tooth 41201-6C4-830
PARTS UNLIMITED
$30.55All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223504B- SKU:
- K223504B
- Availability:
- Ships Same Business Day
- Weight:
- 1.56 LBS
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$30.55 -
PARTS UNLIMITED Rear Honda Sprocket - 420 - 48 Tooth 41201-329-000
PARTS UNLIMITED
$47.89All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223558- SKU:
- K223558
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 48
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$47.89 -
PARTS UNLIMITED Rear Honda Sprocket - 428 - 44 Tooth 41201-110-670
PARTS UNLIMITED
$26.47All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223566- SKU:
- K223566
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 44
- TYPE:
- DRIVE
$26.47 -
PARTS UNLIMITED Rear Honda Sprocket - 428 - 45 Tooth 41201-053-020
PARTS UNLIMITED
$25.45All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223567- SKU:
- K223567
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- TOOTH COUNT:
- 45
- TYPE:
- DRIVE
- CHAIN SIZE:
- 428
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
$25.45 -
PARTS UNLIMITED Rear Honda Sprocket - 420 - 36 Tooth 41200-152-000
PARTS UNLIMITED
$27.49All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223584- SKU:
- K223584
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 36
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- CHAIN SIZE:
- 420
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
$27.49 -
PARTS UNLIMITED Rear Honda Sprocket - 420 - 46 Tooth 41201-153-000
PARTS UNLIMITED
$34.63All our front and rear sprockets are manufactured to OEM specs using high-grade hardened steel for long life, All match original equipment exactly and feature precision-machined splines and teeth for a perfect fit, Packaged individually in poly bags with...K223585- SKU:
- K223585
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- NATURAL
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 46
- TYPE:
- DRIVE
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 420
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$34.63
