Help: Really stuck cranks

[xioly]

Righty ho, I've removed the nut holding the crank on but I can't for the life of me get the cranks off - the threads in both are mullered.

I might be able to get a gear puller tomorrow - does this work?

 

[Crayons]

if everything else is still on the bike, go for a ride – maybe even a few bunny hops.

Seriously, this approach does work

 

[stew-b]

gear puller will work if you can get a grip on the cranks...or ride it as above.

 

[xioly]

You are right but I've stripped everything - chucked the knackered cables and have no stem. I tried bouncing around outside without any handlebars or headset and that was just silly.

Just got the hacksaw out as the non drive side has a blade gap that I can get to but I've already blunted it.

Bugger.

 

[Scrat]

Use a paint stripper hot air gun/ oxyacetelene torch to heat the cranks around BB axle, get it as hot as you can, then tap off the crank with a piece of wood as a punch and a big hammer.

Should come off piece of cake,