Street Bike Drivetrain
Street Bike Drivetrain Parts at JJ Motorsports
Upgrade your street bike's drivetrain for smoother power delivery and longevity with components from JJ Motorsports. Our range includes chains, sprockets, drive belts, transmission covers, and more, designed for reduced wear, better acceleration, and reliable performance on the road or track. Compatible with Honda, Kawasaki, Suzuki, and other models, these parts feature high-strength materials, precise fitment, and easy installation for sportbikes, cruisers, or tourers.
Shop trusted brands like JT Sprockets for durable sprockets and Drag Specialties for reinforced belts. Explore related subcategories such as street bike rear sprockets for gear ratios or street bike drive belts for belt-driven systems.
Top Street Bike Drivetrain Products
- JT Chains 420 HDR Heavy Duty Drive Chain - Steel - 100 Links – Ideal for up to 150cc engines with enhanced strength.
- JT Sprockets Sprocket Rear Kawasaki 42-Tooth JTR1489.42 – Steel construction for minimum weight and maximum durability.
- Drag Specialties Rear Drive Belt 136-Tooth 1 1/2" BDL SPC-136 – Carbon fiber reinforced for superior strength on belt-driven bikes.
- Trask Transmission Cover M8 TM-2041CH – Billet aluminum for a custom look and protection on M8 engines.
- Driven Racing Rear Sprocket 43-Tooth 5063-520-43T – Precision-machined for optimal gear performance and lightweight design.
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
-
On Sale
SUPERSPROX Countershaft Sprocket - 16-Tooth CST-578-16-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95Chain slippage and premature sprocket wear are performance killers that rob you of power delivery and reliability when you need it most. The SUPERSPROX Countershaft Sprocket delivers factory-level...12121395- SKU:
- 12121395
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 16
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
MSRP: $29.95Now: $25.46Was: $29.95 -
On Sale
SUPERSPROX Countershaft Sprocket - 14-Tooth CST-516-14-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95A worn or inadequate countershaft sprocket robs your engine of power through chain drag and accelerates drivetrain wear. The SUPERSPROX 14-Tooth Countershaft Sprocket delivers the precision and...12121442- SKU:
- 12121442
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 14
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
MSRP: $29.95Now: $25.46Was: $29.95Qty in Cart: 0Quantity:Price:MSRP: $29.95Now: $25.46Was: $29.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 15-Tooth CST-516-15-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95A countershaft sprocket is where power transfer begins—a weak link here means chain slip, missed shifts, and lost acceleration. The SUPERSPROX CST-516-15-2 is engineered to eliminate that...12121443- SKU:
- 12121443
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 15
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
MSRP: $29.95Now: $25.46Was: $29.95 -
On Sale
SUPERSPROX Countershaft Sprocket - 14-Tooth CST-1182-14-2
SUPERSPROX
MSRP: $34.95Now: $29.71Was: $34.95If you're running a countershaft sprocket that's taking a beating from chain drag and premature wear, you're leaving power on the table. The SUPERSPROX 14-tooth countershaft sprocket delivers...12121445- SKU:
- 12121445
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- CHAIN SIZE:
- 525
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 14
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
MSRP: $34.95Now: $29.71Was: $34.95Qty in Cart: 0Quantity:Price:MSRP: $34.95Now: $29.71Was: $34.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 17-Tooth CST-1183-17-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95A countershaft sprocket is only as good as its durability and efficiency—and this SUPERSPROX 17-tooth unit delivers both in spades. Built from SCM-435 carbon-free steel and hardened to factory racing...12121446- SKU:
- 12121446
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 525
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 17
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
MSRP: $29.95Now: $25.46Was: $29.95Qty in Cart: 0Quantity:Price:MSRP: $29.95Now: $25.46Was: $29.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 18-Tooth CST-1183-18-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95A countershaft sprocket is where power transfers to your chain—any inefficiency here compounds through your entire drivetrain. The SUPERSPROX CST-1183-18-2 is engineered with the same specifications...12121447- SKU:
- 12121447
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- CHAIN SIZE:
- 525
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- TOOTH COUNT:
- 18
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
MSRP: $29.95Now: $25.46Was: $29.95Qty in Cart: 0Quantity:Price:MSRP: $29.95Now: $25.46Was: $29.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 18-Tooth CST-1180-18-2
SUPERSPROX
MSRP: $34.95Now: $29.71Was: $34.95If you're running a countershaft sprocket that's holding back your power delivery, you're leaving performance on the table. The SUPERSPROX 18-tooth countershaft sprocket eliminates the friction and...12121449- SKU:
- 12121449
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 18
- MATERIAL:
- STEEL
- UNITS:
- EACH
MSRP: $34.95Now: $29.71Was: $34.95 -
On Sale
SUPERSPROX Countershaft Sprocket - 17-Tooth CST-423-17-2
SUPERSPROX
MSRP: $37.40Now: $31.79Was: $37.40A countershaft sprocket directly impacts your power delivery and drivetrain efficiency—a worn or undersized sprocket bleeds horsepower through chain drag and inconsistent engagement. The SUPERSPROX...12121426- SKU:
- 12121426
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- CHAIN SIZE:
- 530
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 17
- TYPE:
- COUNTERSHAFT
MSRP: $37.40Now: $31.79Was: $37.40Qty in Cart: 0Quantity:Price:MSRP: $37.40Now: $31.79Was: $37.40Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 15-Tooth CST-5054-15-2
SUPERSPROX
MSRP: $39.95Now: $33.96Was: $39.95A countershaft sprocket directly impacts your power delivery, acceleration response, and chain wear rates. This Supersprox 15-tooth delivers factory racing durability and precision geometry without...12121428- SKU:
- 12121428
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 15
- CHAIN SIZE:
- 525
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
MSRP: $39.95Now: $33.96Was: $39.95 -
On Sale
SUPERSPROX Countershaft Sprocket - 14-Tooth CST-513-14-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95A countershaft sprocket is your direct connection between engine power and wheel traction—weak material or poor design here means lost power, premature wear, and potential catastrophic failure...12121429- SKU:
- 12121429
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 530
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 14
MSRP: $29.95Now: $25.46Was: $29.95 -
On Sale
SUPERSPROX Countershaft Sprocket - 16-Tooth CST-704-16-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95A worn or undersized countershaft sprocket bleeds power through chain drag and introduces reliability risks at critical moments. The SUPERSPROX CST-704-16-2 is engineered with the same factory racing...12121433- SKU:
- 12121433
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 16
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 525
- COLOR/FINISH:
- NATURAL
- UNITS:
- EACH
MSRP: $29.95Now: $25.46Was: $29.95Qty in Cart: 0Quantity:Price:MSRP: $29.95Now: $25.46Was: $29.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 15-Tooth CST-740-15-2
SUPERSPROX
MSRP: $34.95Now: $29.71Was: $34.95If you're running a 15-tooth countershaft sprocket, material quality directly impacts your power delivery and longevity. This SUPERSPROX unit uses SCM-435 carbon-free steel with a hardened surface...12121434- SKU:
- 12121434
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- CHAIN SIZE:
- 525
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 15
MSRP: $34.95Now: $29.71Was: $34.95 -
On Sale
SUPERSPROX Countershaft Sprocket - 15-Tooth CST-1537-15-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95Countershaft sprockets are where power transfer begins—a worn or inadequate sprocket means lost efficiency, premature chain wear, and compromised acceleration. The SUPERSPROX CST-1537-15-2 eliminates...12121333- SKU:
- 12121333
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- TOOTH COUNT:
- 15
- RIDING STYLE:
- STREET
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 525
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
MSRP: $29.95Now: $25.46Was: $29.95Qty in Cart: 0Quantity:Price:MSRP: $29.95Now: $25.46Was: $29.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 16-Tooth CST-1537-16-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95If you're serious about extracting maximum power from your drivetrain while minimizing energy waste, a quality countershaft sprocket is non-negotiable. The SUPERSPROX 16-tooth design delivers the...12121334- SKU:
- 12121334
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 525
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 16
- TYPE:
- COUNTERSHAFT
MSRP: $29.95Now: $25.46Was: $29.95Qty in Cart: 0Quantity:Price:MSRP: $29.95Now: $25.46Was: $29.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 17-Tooth CST-1579-17-2
SUPERSPROX
MSRP: $24.95Now: $21.21Was: $24.95A countershaft sprocket is your direct link between engine power and wheel traction—cheap out here, and you're risking premature wear, power loss, and catastrophic failure at the worst moment. The...12121338- SKU:
- 12121338
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 17
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- UNITS:
- EACH
MSRP: $24.95Now: $21.21Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.21Was: $24.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 15-Tooth CST-704-15-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95A countershaft sprocket is the foundation of reliable power delivery from your transmission to the chain. The SUPERSPROX CST-704-15-2 combines factory racing durability with lightweight design,...12121400- SKU:
- 12121400
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- CHAIN SIZE:
- 525
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 15
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
MSRP: $29.95Now: $25.46Was: $29.95Qty in Cart: 0Quantity:Price:MSRP: $29.95Now: $25.46Was: $29.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 15-Tooth CST-736-15-2
SUPERSPROX
MSRP: $24.95Now: $21.21Was: $24.95A countershaft sprocket is your direct mechanical link to translating engine power to the wheels—choose poorly, and you're bleeding horsepower through chain drag and premature wear. The SUPERSPROX...12121402- SKU:
- 12121402
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 15
- CHAIN SIZE:
- 520
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $24.95Now: $21.21Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.21Was: $24.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 14-Tooth CST-740-14-2
SUPERSPROX
MSRP: $34.95Now: $29.71Was: $34.95A countershaft sprocket is your direct link to reliable power delivery—cheap or poorly manufactured options fail under load, costing you race time and money. SUPERSPROX's factory-team-spec design...12121403- SKU:
- 12121403
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- MATERIAL:
- STEEL
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 525
- TOOTH COUNT:
- 14
MSRP: $34.95Now: $29.71Was: $34.95Qty in Cart: 0Quantity:Price:MSRP: $34.95Now: $29.71Was: $34.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 15-Tooth CST-511-15-1
SUPERSPROX
MSRP: $24.95Now: $21.21Was: $24.95A worn or undersized countershaft sprocket robs you of acceleration and efficiency, forcing your chain to work harder and your engine to sacrifice power transfer. The SUPERSPROX CST-511-15-1 combines...12121729- SKU:
- 12121729
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 15
- CHAIN SIZE:
- 520
- TYPE:
- COUNTERSHAFT
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
MSRP: $24.95Now: $21.21Was: $24.95Qty in Cart: 0Quantity:Price:MSRP: $24.95Now: $21.21Was: $24.95Subtotal: -
On Sale
SUPERSPROX Countershaft Sprocket - 16-Tooth CST-580-16-2
SUPERSPROX
MSRP: $29.95Now: $25.46Was: $29.95A worn or inferior countershaft sprocket bleeds power, increases chain wear, and compromises acceleration—especially critical in high-RPM racing and off-road conditions. The SUPERSPROX 16-tooth...12121731- SKU:
- 12121731
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 16
- TYPE:
- COUNTERSHAFT
- PRODUCT NAME:
- SPROCKET
MSRP: $29.95Now: $25.46Was: $29.95
