Shimano FC-T521 104mm BCD 4 Arm Middle Chainring - Black - 36T-AL

For use with Shimano FC-T521 10 speed triple chainsets with a 48-36-26T set up.

This middle chainring can also be used on the following chainsets:

- Shimano Deore FC-M610
- Shimano Deore FC-T6010
- Shimano Deore FC-T611

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

If the correct middle chainring is unavailable you can also use the chainring from the following chainset:

- Shimano FC-T551

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

Genuine Shimano replacement part.