Is my crank or axle bent ?

darylw357 · Jun 22, 2017

Hi everyone, new member here with a couple of classic road bikes and a couple of questions too

This is my Orbit Gold Medal.

The non-drive side crank on this bike has always looked a bit odd to me and little has changed since I rebuilt the bottom bracket. The bracket is badly worn but I've fitted new bearings and adjusted it the best I could.

So does this look normal for this style of crank ? It really looks bent at the point where the taper and axle meet and the clearance near the rear chainstay .

Bats · Jun 22, 2017

Looks normal to me. Photo might be tricking you with the chainstay being level - they spread outwards towards the wheel in real life, after all

KermitGKona88 · Jun 23, 2017

Re:

It is always difficult to tell with these cranks some are straight some have a very slight curve. I think yours is okay though

stew-b · Jun 23, 2017

rest the chain on the bottom bracket shell and give the crank a good spin,you will see if anything is bent if the crank wobbles in and out viewed from above.

pigman · Jun 23, 2017

Re:

ask someone else to ride the bike - it only has to be short distance. If it's that far out, they will feel it instantly as the pedal axle won't rotate through a constant plane.

I say someone else, as you may be used to it

darylw357 · Jun 23, 2017

Thanks guys you've given me a few ideas to try. I will replace the BB at some point anyway as this one is still quite rough.

Is my crank or axle bent ?

darylw357

Dirt Disciple

Bats

Senior Retro Guru

KermitGKona88

stew-b

Senior Retro Guru

pigman

Old School Grand Master

darylw357

Dirt Disciple

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