Originally Posted by
Newspaper_Nick
Yeah thanks for the replies. I will get new cranks arms. It was about time anyway.
Be aware, the crankset chosen determines what bottom bracket (BB) type or spindle length you will need for it to install for intended chainline. First measure your BB shell width.It'll most likely be 68mm or 73mm, most likely English threaded given the crank on it now. If you get another sq taper crank see what spindle length the new crank requires. Measure your old spindle length and maybe you won't need a new BB. Really though if you have some miles on the bike you might just replace it anyway and keep the old one for a spare. If you have a coop, nearby you may be able to pick up a used crank cheap that will use the chain rings you already bought or have good rings you prefer already on it.