Bottom Brackets

- Converts a 68mm American style bottom bracket to take a 3-piece 19mm-spindle crank - Bearings included - Shell: 68mm - Interface: American - Spindle Type: 19mm - Cup Material: Alloy

- For 19mm crank spindles and Euro bottom bracket frames - Sealed quad bearing design with alloy cups - Shell: Euro - Interface: English - Spindle Type: 19mm