Chainring 8 to 9 speed 135 mm

8/9-speed road bike chainring – 135 mm BCD

Looking for a reliable road bike chainring to restore your drivetrain performance or replace a worn component? This 8/9-speed compatible chainring is an excellent choice for cyclists seeking smooth shifting and efficient power transfer on the road.

Designed for 8 and 9-speed drivetrains

Built for road bikes equipped with 8-speed or 9-speed transmissions, this chainring is compatible with many cranksets using a 135 mm bolt circle diameter (BCD). Its design ensures efficient chain engagement and helps maintain optimal pedaling performance during training rides and long-distance cycling.

Technical specifications

• Compatible with 8 and 9-speed drivetrains

• 135 mm BCD (Bolt Circle Diameter)

• Condition: New, without original packaging

• Suitable for road bike cranksets

Available versions

40-tooth chainring – inner position

The 40T chainring is designed for installation in the inner position of a double chainring crankset. It provides easier gearing, making it ideal for hilly routes, endurance rides, and riders who prefer a higher cadence.

48-tooth chainring – outer position

The 48T chainring is intended for installation in the outer position. This version is supplied without a chain retention pin. Its larger tooth count delivers higher gearing, making it well suited to fast-paced riding and flat terrain.

Why replace your road bike chainring ?

Over time, chainring teeth wear down due to regular use. A worn chainring can lead to chain skipping, reduced shifting performance, and loss of drivetrain efficiency. Replacing your chainring can help:

• Restore smooth and efficient power transfer.

• Improve shifting accuracy.

• Reduce premature wear on the chain and cassette.

• Enhance overall road bike performance.

The ideal component for drivetrain maintenance

Whether you are restoring a vintage road bike, maintaining a training bike, or simply looking for a quality replacement part, this 8/9-speed chainring with a 135 mm BCD offers a dependable solution for keeping your drivetrain running efficiently.

Choose between the 40-tooth inner chainring or the 48-tooth outer chainring to match your crankset configuration and riding style.