JT Sprockets - Rear - 41T - 51T | RB | 520 (Steel)

Upgrade your Triumph’s rear drive with the JT 41T Rear Steel Sprocket (520 pitch) – a premium replacement component made from C49 high-carbon steel for long-lasting strength and consistent power delivery. Designed to meet or exceed OEM standards, this RB-spec sprocket includes a rubber damper for smoother, quieter operation — ideal for road-going modern classics.

This 41-tooth version is two teeth down from the OEM 43T on models like the Bonneville T100 900cc, providing slightly taller gearing:

• Reduced RPM at cruising speeds

• Smoother highway riding

• Slight reduction in low-end torque

Key Technical Features:

C49 High-Carbon Steel Construction
Manufactured to resist wear and distortion under torque, delivering long service life on urban commutes and longer touring rides.

Rubber-Cushioned (RB) Spec
Integrated rubber dampers reduce drivetrain vibration and chain noise — perfect for quiet, refined road manners.

Performance Gearing Option (41T)
Slightly lowers revs at constant speed for improved fuel economy and smoother open-road cruising.
Note: A decrease from the stock 43T may slightly reduce off-the-line acceleration.

Direct OE Fitment
Engineered for seamless installation with no modification required, provided your bike is running 520 pitch gearing.

Fitment:

✔ Bonneville T100 (900cc) inc. ABS: 2016–2021
✔ Street Twin (900cc): 2016–2021
✔ Street Cup (900cc): 2017–2019
✔ Street Scrambler (900cc): 2017–2021

⚠️ Check Before You Order:
520 pitch sprockets are commonly used in aftermarket conversions. If your bike was originally equipped with 525 pitch gearing and has since been changed, please refer to our Triumph Bonneville Motorcycle Chain Sizes Explained to confirm compatibility.

Why Choose JT Sprockets?

JT is a global leader in aftermarket sprockets, trusted by workshops and riders worldwide for:

• OE-grade materials and manufacturing quality

• Accurate fit and finish across a wide range of applications

• Rubber-damped (RB) options for smoother, quieter operation

• Competitive pricing without compromising performance

For Triumph riders seeking a refined ride feel and long-lasting reliability, the JT Rear Sprocket 41T RB (520) is a smart upgrade — especially for those focused on highway efficiency or lighter throttle cruising.

Upgrade to JT Sprockets for precision, durability, and a smoother ride on your Triumph Modern Classic. Ideal for both daily commutes and long-distance touring.