The thicknesses of teeth is processed, which can work seamlessly with the inner and outer link of the chain to fit your cycling, reducing frictions and noise.
Safe efficient design: Machining integrated, intensity is safe, suitable for long time cycling. Extended pluses or minuses tooth shape, the chain can work better.
Bike chainring is suitable for most 110/130BCD cranks, please make surer your crank and number of teeth specification carefully before purchasing.
Bikes narrow wide chainring is make of aluminium alloy, designs with positive and negatives to the chain from falling, strong force.