40 teeth chainring 8 to 9 speed 135 mm

40 tooth chainring for road bike 8/9 speed – lightweight, precise and reliable

Upgrade your road bike drivetrain with this 40 tooth chainring designed for 8 and 9 speed transmissions. Perfect for replacing a worn chainring or adjusting your gearing setup, this model delivers smooth pedaling, precise shifting and excellent efficiency on the road.

Thanks to its lightweight and durable design, this road bike chainring is ideal for cyclists looking for a reliable drivetrain component for training rides, sport cycling or restoring a vintage or modern road bike.

40 tooth chainring compatible with 8/9 speed drivetrains

This 40 tooth road bike chainring is compatible with both 8 speed and 9 speed drivetrains. Its tooth profile offers a great balance between acceleration, cadence and versatility, especially on rolling terrain or compact crankset setups.

The tooth design helps maintain chain stability and smooth gear changes, even under heavy pedaling efforts. This inner chainring is perfectly suited for double road cranksets using a standard bolt pattern.

40 tooth chainring specifications

• Teeth count: 40 teeth

• Compatibility: 8/9 speed

• Bolt circle diameter: 135 mm

• Position: inner

• Weight: 45 grams

• Condition: new without packaging

Lightweight and efficient road bike chainring

At only 45 grams, this 40 tooth road chainring helps keep your drivetrain lightweight while maintaining excellent stiffness and durability. It is suitable both for restoring a road bike and optimizing crankset performance.

Its 135 mm BCD ensures compatibility with many classic road cranksets. The inner position allows smooth operation alongside an outer chainring.

Why choose a 40 tooth chainring ?

Choosing a 40 tooth chainring provides smoother pedaling while maintaining efficient power transfer on the road. This gearing option is especially popular for:

• long-distance rides;

• hilly routes;

• vintage road bikes;

• compact or custom drivetrain setups;

• high cadence training.

This road bike chainring is a reliable solution for replacing a worn component without sacrificing drivetrain performance.

New 40 tooth chainring without packaging

This product is sold new without packaging. The chainring may show minor storage marks with no impact on functionality or performance.

Compatible with many 8/9 speed road bike setups, this 40 tooth chainring is an excellent choice for maintaining or upgrading your road bike drivetrain at a great value.