JT Sprockets - Rear - 41T - 48T | RB | 525 (Steel)

Upgrade your drivetrain with the JT Rear Steel Sprocket (525 pitch, 41–48T) – a durable and precise replacement for worn factory sprockets on classic Triumph twin-cylinder models. Engineered from C49 high-carbon steel, these sprockets offer long service life, consistent power delivery, and dependable performance for both everyday use and weekend touring.

The RB variant includes rubber dampers to reduce chain noise and absorb drivetrain vibrations – perfect for smoother, quieter performance on older Modern Classic models.

Key Technical Features:

C49 High-Carbon Steel Construction
Built for longevity and resilience under varied load and riding conditions – ideal for long-term road use.

Rubber Cushion (RB) Spec
Reduces mechanical noise and softens drivetrain shock under acceleration and deceleration – noticeable during stop-start city riding or relaxed cruising.

Customisable Tooth Options (41T–48T)
Choose your preferred final drive ratio to fine-tune acceleration or cruising characteristics:

• More Teeth (e.g. 47T–48T) → stronger low-end torque, quicker response

• Fewer Teeth (e.g. 41T–42T) → lower RPMs at cruising speed, increased top-end efficiency
  (Always count the teeth on your current sprocket if unsure.)

OEM-Compatible Design
Direct-fit design makes replacement straightforward with no modification required – a reliable fit for stock setups using 525 chain pitch.

Fitment – Triumph Modern Classic 525 Pitch Models:

✔ Bonneville 800cc: 2001–2006
✔ Bonneville 865cc: 2005–2013
✔ Scrambler 865cc: 2006–2016
✔ Thruxton 900cc: 2004–2016

Note: Confirm your current sprocket tooth count and chain pitch before ordering. For help identifying your bike’s setup, refer to our Triumph Bonneville Motorcycle Chain Sizes Explained.

Why Choose JT Sprockets?

JT Sprockets are world-renowned for their:

• Precision-engineered, heat-treated steel construction

• OEM-level fit and finish across a wide range of motorcycles

• Quiet, smooth operation with rubber-damped (RB) versions

• Exceptional value for money without compromising durability

Whether you’re maintaining your factory gearing or experimenting with custom ratios, the JT Rear Sprocket (41T–48T RB) is a tried-and-true solution for any Triumph Modern Classic rider.

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.