So, the time has come to replace the drive train on my hard tail, and today I took on the task of doing it myself.
I’ve hit a wall, though; on swapping my small and medium chain rings, I attempted to remove the crank arm with the extractor tool that came with my cheapo Bike Hand toolkit, but on tightening the puller, the threads were stripped from the crankarm shell.
I don’t think I need telling that I’ve ruined the cranks, so can I get away with one new arm or will I have to get the whole unit, bottom bracket and all?
This is the bike spec if it helps: Ghost SE 5000
Thanks,
Gareth