Chainring Narrow Wide Tooth Ultralight Aluminum Alloy Single Chainring Chainwheel For Bike Bicycle New,Black,42T NO5112

Features:

1. The narrow-wide teeth design increases bicycle chain retention,grasp force and wear life, at the time reduces friction and noise.

2. Larger wide tooth design provides maximum ring durability and drop performance.

3. The Versatility of the Chainring, Stop dropped chains, install simply.

4. Designed to provide varying mechanical advantages at different points in the pedal stroke. This effectively changes the gear ratio at different angles of rotation for an ergonomic feel.

5. Intensity is more secure, appply for long time cycling. Extended edition plus or minus tooth shape, the chain can effect better.

Notice:

*Actual color may be slightly different from the image due to different monitor and light effect

*Please allow 1-3cm deviation due to manual measurement

Description:

Size: As the picture shown

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