Shimano Zee FC-M640 104mm BCD 4 Arm Single Chainring - Black - 38T

For use with Shimano Zee FC-M640 10 speed single chainsets.

This single chainring can also be used on the following chainset:

- Shimano Zee FC-M645

This is an "A" match which indicates that the parts are the same in materials, appearance, finish & size etc.

If the correct single chainring is unavailable you can also use the chainring from the following chainsets:

- Shimano Saint FC-M825
- Shimano Saint FC-M820

These are a "B" match which indicates that the parts are usable, but differ in materials, appearance, finish & size etc.

Genuine Shimano replacement part.