Shimano FC-T521 64mm BCD 4 Arm Inner Chainring - 24T-AE

For use with Shimano FC-T521 10 speed triple chainsets with a 44-32-24T set up.

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

- Shimano FC-M522

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

Genuine Shimano replacement part.