Bottom Bracket Wrench, Shimano® 8-Notch chain breaker and other HG® standard cassette

and other HG® standard cassette lockrings

Pair with most BB sockets and wrenches

or a home shop setup

16-notch external bearing bottom bracket cups including Shimano® BB80

Features 4mm/5mm hex

Bottom Bracket Wrench, Shimano® 8-Notch chain breaker and other HG® standard cassetteFlat Wrench For 8 Notch Shimano and ISIS Drive BB Cups Fits 8 Notch Shimano Octalink and ISIS Drive Bottom Bracket Cups. Features 39. 8mm inner diameter and 36. 8mm tooth diameter. Designed to stand up to the harsh conditions of professional use. Precision laser cut design with ergonomic cushioned grip. Pedro's flat wrenches provide professional quality, precision fit wrenches required to properly install, remove, and adjust components. Pedro's bottom