Mountain Biking - Bent crank chainrings?

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Mad Dog JR
08-24-03, 03:57 PM
I think i may have bent my chainrings, but not sure if they are bent or if its normal for them to have a little side to side wobble it aid is shifting?
Or are they supost to be totaly true?

BTW they are TruVative Firex cranks

Thanks!
Jonathan:)

KleinMp99
08-24-03, 04:57 PM
When they are made they are perfectly true.....so if they wobble at all they are bent. They can be bent to a certain point though before your shifting is ruined / your chain falls off constantly.
Mad Dog JR
08-24-03, 05:24 PM
it stays on and shifts, but it now rubs a little one the derailer cage thats what i noticed first. so maybe ill try bending it back if i can.

Thanks!

mindbogger
08-24-03, 08:02 PM
be very careful when bending it back. Take your time.
Mad Dog JR
08-24-03, 08:19 PM
weird, it seams only the middle ring is slighty bent. only about 1/16 tho... just enough to make it rub.