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!
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- Qty in Cart
- Quantity
- Price
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On Sale
JT SPROCKETS Countershaft Sprocket - 19 Tooth - Triumph JTF1180.19RB
JT SPROCKETS
MSRP: $19.40Now: $17.27Was: $19.40A worn or damaged countershaft sprocket directly impacts your Triumph's power delivery and acceleration response. This JT Sprockets 19-tooth replacement restores precise gear engagement and...12121551- SKU:
- 12121551
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
MSRP: $19.40Now: $17.27Was: $19.40 -
On Sale
JT SPROCKETS Countershaft Sprocket - 16 Tooth - Ducati JTF749.16
JT SPROCKETS
MSRP: $22.68Now: $20.19Was: $22.68Your Ducati's acceleration and top-end performance depend on precise power delivery from the countershaft—and a worn or damaged sprocket kills both. This JT Sprockets 16-tooth countershaft sprocket...12121561- SKU:
- 12121561
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
MSRP: $22.68Now: $20.19Was: $22.68 -
On Sale
JT SPROCKETS Countershaft Sprocket - 14 Tooth - Husqvarna/KTM JTF1908.14
JT SPROCKETS
MSRP: $13.60Now: $12.10Was: $13.60A worn or damaged countershaft sprocket kills power transfer efficiency and throws off your entire drivetrain geometry. The JT Sprockets 14-tooth countershaft sprocket restores precise engagement...12121571- SKU:
- 12121571
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
MSRP: $13.60Now: $12.10Was: $13.60 -
On Sale
JT SPROCKETS Countershaft Sprocket - 18 Tooth - Triumph JTF1184.18
JT SPROCKETS
MSRP: $16.58Now: $14.76Was: $16.58A worn or damaged countershaft sprocket directly impacts your Triumph's power delivery, throttle response, and overall drivetrain efficiency. This JT Sprockets replacement restores factory-spec...12121695- SKU:
- 12121695
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $16.58Now: $14.76Was: $16.58Qty in Cart: 0Quantity:Price:MSRP: $16.58Now: $14.76Was: $16.58Subtotal: -
On Sale
JT SPROCKETS Countershaft Sprocket - 14 Tooth - Kawasaki JTF1537.14
JT SPROCKETS
MSRP: $18.83Now: $16.76Was: $18.83A worn or mismatched countershaft sprocket robs your Kawasaki of acceleration and throttle response. This JT Sprockets 14-tooth unit restores crisp power delivery and reduces strain on your...12121702- SKU:
- 12121702
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
MSRP: $18.83Now: $16.76Was: $18.83 -
On Sale
JT SPROCKETS Countershaft Sprocket - 14 Tooth - Z125 JTF1540.14
JT SPROCKETS
MSRP: $7.20Now: $6.41Was: $7.20A worn or damaged countershaft sprocket directly impacts power delivery and acceleration response on your Z125. This JT Sprockets 14-tooth unit restores precise chain engagement and maintains the...12121703- SKU:
- 12121703
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
MSRP: $7.20Now: $6.41Was: $7.20 -
On Sale
JT SPROCKETS Countershaft Sprocket - 16 Tooth - Aprilia JTF709.16RB
JT SPROCKETS
MSRP: $21.60Now: $19.22Was: $21.60A countershaft sprocket is critical to your Aprilia's power delivery and acceleration characteristics—worn or damaged teeth directly compromise throttle response and shift consistency. JT Sprockets'...12121711- SKU:
- 12121711
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
MSRP: $21.60Now: $19.22Was: $21.60 -
On Sale
JT SPROCKETS Countershaft Sprocket - 15 Tooth - Ducati JTF743.15RB
JT SPROCKETS
MSRP: $22.68Now: $20.19Was: $22.68A higher-revving countershaft sprocket transforms your Ducati's acceleration profile by reducing gear ratio—ideal if you're chasing quicker throttle response and mid-range punch on track or...12121712- SKU:
- 12121712
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
MSRP: $22.68Now: $20.19Was: $22.68 -
On Sale
JT SPROCKETS Countershaft Sprocket - 16 Tooth - Honda JTF313.16
JT SPROCKETS
MSRP: $22.33Now: $19.87Was: $22.33A worn or damaged countershaft sprocket directly impacts your power delivery and throttle response—critical factors whether you're chasing lap times or building reliable street performance. The JT...12121715- SKU:
- 12121715
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $22.33Now: $19.87Was: $22.33 -
On Sale
JT SPROCKETS Countershaft Sprocket - 15 Tooth - Panigale JTF748.15
JT SPROCKETS
MSRP: $21.40Now: $19.05Was: $21.40A precise countershaft sprocket is fundamental to achieving reliable power delivery and optimal gear ratios on your Panigale. This JT Sprockets 15-tooth unit delivers the durability and consistency...12121722- SKU:
- 12121722
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
MSRP: $21.40Now: $19.05Was: $21.40 -
On Sale
JT SPROCKETS Countershaft Sprocket - 15 Tooth - Beta/Kawasaki/Suzuki JTF432.15
JT SPROCKETS
MSRP: $13.00Now: $11.57Was: $13.00A worn or damaged countershaft sprocket directly impacts your bike's power delivery and acceleration response. This OEM-equivalent 15-tooth sprocket from JT Sprockets restores precise chain...12121918- SKU:
- 12121918
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
MSRP: $13.00Now: $11.57Was: $13.00 -
On Sale
JT SPROCKETS Front Sprocket - 14 Tooth - Multistrada JTF743.14
JT SPROCKETS
MSRP: $21.50Now: $19.14Was: $21.50A worn or incorrect front sprocket directly impacts your Multistrada's acceleration response and overall drivetrain efficiency. The JT Sprockets 14-tooth front sprocket delivers precise engagement...12121931- SKU:
- 12121931
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $21.50Now: $19.14Was: $21.50 -
On Sale
JT SPROCKETS Countershaft Sprocket - 14 Tooth - Ducati JTF749.14
JT SPROCKETS
MSRP: $21.13Now: $18.81Was: $21.13A properly sized countershaft sprocket is critical to optimizing your Ducati's power delivery and throttle response. This 14-tooth JT Sprockets unit delivers the durability and precision fit required...12121932- SKU:
- 12121932
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
MSRP: $21.13Now: $18.81Was: $21.13 -
On Sale
JT SPROCKETS Countershaft Sprocket - 15 Tooth - Yamaha JTF1586.15
JT SPROCKETS
MSRP: $17.43Now: $15.51Was: $17.43A worn or damaged countershaft sprocket directly impacts your bike's power delivery and acceleration consistency. This OEM-equivalent JT Sprockets 15-tooth countershaft sprocket restores precise gear...12121950- SKU:
- 12121950
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
MSRP: $17.43Now: $15.51Was: $17.43 -
On Sale
JT SPROCKETS Countershaft Sprocket - 12 Tooth - Honda JTF270.12
JT SPROCKETS
MSRP: $16.23Now: $14.44Was: $16.23A 12-tooth countershaft sprocket is the foundation of responsive acceleration and precise throttle control on your Honda. By reducing sprocket teeth, you'll gain quicker engine engagement and...12121960- SKU:
- 12121960
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
MSRP: $16.23Now: $14.44Was: $16.23 -
On Sale
JT SPROCKETS Countershaft Sprocket - 14 Tooth - Honda JTF278.14
JT SPROCKETS
MSRP: $13.53Now: $12.04Was: $13.53A 14-tooth countershaft sprocket directly impacts your Honda's acceleration curve and throttle response. By running a smaller countershaft sprocket, you'll achieve quicker power delivery off the line...12121963- SKU:
- 12121963
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $13.53Now: $12.04Was: $13.53 -
On Sale
JT SPROCKETS Countershaft Sprocket - 17 Tooth - Honda JTF291.17
JT SPROCKETS
MSRP: $22.15Now: $19.71Was: $22.15A properly sized countershaft sprocket is critical for achieving your target gear ratios and maximizing acceleration or top-end performance depending on your setup. The JT Sprockets 17-tooth...12121970- SKU:
- 12121970
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
MSRP: $22.15Now: $19.71Was: $22.15Qty in Cart: 0Quantity:Price:MSRP: $22.15Now: $19.71Was: $22.15Subtotal: -
On Sale
JT SPROCKETS Countershaft Sprocket - 17 Tooth - Yamaha JTF424.17
JT SPROCKETS
MSRP: $15.50Now: $13.80Was: $15.50A 17-tooth countershaft sprocket directly impacts your acceleration curve and top-end performance—smaller tooth counts pull harder off the line but sacrifice highway cruising. If you're looking to...12121979- SKU:
- 12121979
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
MSRP: $15.50Now: $13.80Was: $15.50 -
On Sale
JT SPROCKETS Countershaft Sprocket - 13 Tooth - Suzuki JTF432.13
JT SPROCKETS
MSRP: $12.50Now: $11.13Was: $12.50A worn or damaged countershaft sprocket directly impacts your transmission's efficiency and acceleration response. This OEM-equivalent 13-tooth sprocket restores precise gear engagement and...12121985- SKU:
- 12121985
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
MSRP: $12.50Now: $11.13Was: $12.50 -
On Sale
JT SPROCKETS Countershaft Sprocket - 14 Tooth - Kawasaki/Suzuki JTF432.14
JT SPROCKETS
MSRP: $12.50Now: $11.13Was: $12.50A worn or damaged countershaft sprocket directly impacts your power delivery and acceleration—compromising both race performance and reliability. This JT Sprockets 14-tooth countershaft sprocket...12121986- SKU:
- 12121986
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
MSRP: $12.50Now: $11.13Was: $12.50
