Shimano Ultegra FC-6603 74mm BCD 5 Arm Inner Chainring - 30T

For use with Shimano Ultegra FC-6603 10spd Triple Chainsets with a 52-39-30T set up.

This Inner Chainring can also be used on the following chainset:

- Shimano Ultegra FC-6603-A

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

Genuine Shimano replacement part.