I’ve had this old beach cruiser for a couple years, it’s a budget bike to say the least. Was riding tonight and felt the pedal deform and then break altogether. The old metal pedals had recently worn out and I’d replaced them but now the crank arm itself is sheared. How hard is it to replace a crank arm on a bike this old and why/how does this happen? If I replace it will the other crank arm still be at risk?
by Main_Half
4 Comments
One too many pedal strikes.
Maybe try eBay for a replacement crankset.
Ooh. Now you have a pedal wrench. I’m not sure if that’s a casting issue or a corrosion/ strike issue.
the good thing is that the crank actually warned by deforming and getting loose before failing… thats the best you can hope for in those situations.
even new and expensive name-brand cranks can fail. sometimes without any warning.
usually removing a crank isnt that hard. but depening on what bottom bracket type and crank connection they used, youll need one or two special tools…
some types are more frustrating to work on. bmx and cruisers are unfortunately are more likely to use weird and awkward solutions down there.
if you alreadz replace one side, id do the other as well. chances are high youll buy a set anyways.
a better pic from the crank side would have helped for identification.
That looks like Ashtabula one-piece cranks. Schwinn innovated them, I think in the ’50’s. EBAY or Amazon will have many choices. They generally use 1/2″ pedal threads.