Description:

Crank: 104 BCD lightweight mountain bike crank, Crank Arm Length: 170mm, Crank weight: 580g/pair.
Chainring: Single speed narrow wide chainring, 104BCD, Round.
Material: made of high strength aluminum alloy integrally formed, and surface is anodized and frosted, which is not fading and resist oxidation.
Chainring: positive and negative arrangement makes the chain fit closely with shape, reduces chain wear, prevents the chain from falling off, and drives efficiently.
Note: These crank and chainring are only suitable for single speed. Can not be used on other speed.

Size Chart:

Crank hole distance 170mm/6.69inch
The distance between center of the hole is 104mm/4.09inch
The inner diameter of the hole is 10mm

Package Includes:

1 Set of Crankset