Worn Bottom Bracket Spindle: Diagnose & Replace (24mm/30mm)
Crank arm wobble or gritty spin? Check spindle wear with a micrometer—replace if diameter loss exceeds 0.1mm. Step-by-step diagnosis and fix inside.
Crank arm wobble or gritty spin? Check spindle wear with a micrometer—replace if diameter loss exceeds 0.1mm. Step-by-step diagnosis and fix inside.