Street Bike Countershaft Sprockets - Steel
Street Bike Countershaft Sprockets at JJ Motorsports
Optimize your street bike's gearing with premium steel countershaft sprockets from JJ Motorsports, featuring case-hardened construction for durability and precise chain fit on Honda CBR, Yamaha R-series, Kawasaki ZX, Suzuki GSX-R, and more. These lightweight sprockets deliver smoother acceleration and extended chain life.
Shop Vortex, Parts Unlimited, and Driven Racing countershaft sprockets for race-proven quality. Explore related categories such as street bike rear sprockets or street bike drive chains to complete your gearing upgrades.
Top Street Bike Countershaft Sprockets
- Vortex Front Sprocket 16 Tooth 2917-16 – Case-hardened steel 16-tooth sprocket; lightweight and durable for sportbike performance.
- Parts Unlimited Countershaft Sprocket 17 Tooth 23801300-010-17 – OEM-spec 17-tooth steel sprocket; perfect fit and value for daily riders.
- Driven Racing Counter Shaft Sprocket 16 Tooth 1301-520-16T – Precision-machined 16-tooth sprocket; heat-treated for extreme strength on superbikes.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
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On Sale
JT SPROCKETS Countershaft Sprocket - 14 Tooth - Panigale JTF748.14
JT SPROCKETS
MSRP: $18.90Now: $16.82Was: $18.90A properly sized countershaft sprocket is critical for optimizing your Panigale's power delivery and maintaining reliable gear engagement under high-RPM racing conditions. This 14-tooth sprocket gives you the aggressive ratio tuning needed to extract...12121318- SKU:
- 12121318
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
MSRP: $18.90Now: $16.82Was: $18.90Qty in Cart: 0Quantity:Price:MSRP: $18.90Now: $16.82Was: $18.90Subtotal: -
On Sale
JT SPROCKETS Countershaft Sprocket - 15 Tooth - Ducati JTF749.15
JT SPROCKETS
MSRP: $22.68Now: $20.19Was: $22.68A lighter countershaft sprocket reduces rotational inertia and sharpens your Ducati's throttle response—critical for both track performance and street acceleration. The JT 15-tooth design maintains optimal gearing ratios while the SCM420 chromoly...12121320- SKU:
- 12121320
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $22.68Now: $20.19Was: $22.68Qty in Cart: 0Quantity:Price:MSRP: $22.68Now: $20.19Was: $22.68Subtotal: -
On Sale
JT SPROCKETS Countershaft Sprocket - 17 Tooth - Kawasaki/Suzuki JTF565.17
JT SPROCKETS
MSRP: $11.88Now: $10.57Was: $11.88A worn or damaged countershaft sprocket directly compromises your bike's acceleration, throttle response, and overall drivetrain efficiency. The JT Sprockets 17-tooth countershaft sprocket is engineered from SCM420 chromoly steel to withstand the...12121321- SKU:
- 12121321
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
MSRP: $11.88Now: $10.57Was: $11.88 -
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 eliminates the vibration, noise, and sluggish shifting that come...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 restores the tight tolerances and engagement your...12121561- SKU:
- 12121561
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
MSRP: $22.68Now: $20.19Was: $22.68Qty in Cart: 0Quantity:Price:MSRP: $22.68Now: $20.19Was: $22.68Subtotal: -
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 with your chain, ensuring consistent acceleration and...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 engagement with your primary chain, eliminating slack and...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 drivetrain by using precision-engineered SCM420 chromoly...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 aggressive gear ratios you need for competitive...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' 16-tooth countershaft sprocket restores precise...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 maximizing street-riding agility. The 15-tooth JT design...12121712- SKU:
- 12121712
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
MSRP: $22.68Now: $20.19Was: $22.68Qty in Cart: 0Quantity:Price:MSRP: $22.68Now: $20.19Was: $22.68Subtotal: -
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 Sprockets 16-tooth countershaft sprocket is...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 your bike demands, whether you're fine-tuning for track...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 engagement and eliminates the slack or skip that compromises...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 with minimal wear, maintaining consistent power delivery...12121931- SKU:
- 12121931
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
MSRP: $21.50Now: $19.14Was: $21.50Qty in Cart: 0Quantity:Price:MSRP: $21.50Now: $19.14Was: $21.50Subtotal: -
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 for both track and street applications. Upgrading to a...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 engagement and eliminates the drivetrain slack that...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 improved low-end power delivery—critical upgrades for both...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 and snappier mid-range pull—ideal whether you're...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 countershaft sprocket delivers the durability and precision fit...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:
