- Make sure this fits by entering your model number.
- “B” fit for XT FC-M770-10
- Length: 175
- Spindle Interface Type: Hollowtech II
- Shimano XT Left Crank Arms
This fits your .
Shimano XT Left Crank Arms “B” fit for XT FC-M770-10. Color: Black. Length: 175. Spindle Interface Type: Hollowtech II.