SHIMANO WH-R788-R Cassette Fixing Bolt
41.21 GBP
The Shimano FH‑M770 core mounting bolt secures your cassette to M8000, 775, 780 or 785 frames. Made of robust steel and finished gray, it is 42.2 mm long with a 17.8 mm outer diameter for a tight, vibration‑free fit.