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Repairing a bent crank

ButtersNZ

ButtersNZ

Monkey
Jun 6, 2013
176
10
During the world's smallest crash, one of my cranks was somehow bent. I rode out the day on it but can't stand the feeling of my pedal twisting under foot.

My question is: Can I get away with hammering it straight again? It's a Truvativ Ruktion - AL-6061 alloy.

I can't afford to replace at this stage so it's either repair, or tolerate it..

Cheers
 
HardtailHack

HardtailHack

used an iron once
Jan 20, 2009
6,715
5,599
I have no idea on straightening it but are you 100% sure it is the arm bent and not the pedal axle? I've swapped out a set of cranks only to find I had a bent pedal, big waste of money.
 
jonKranked

jonKranked

Detective Dookie
Nov 10, 2005
85,839
24,422
media blackout
trying to bend it back will only fatigue the material more. how old was the bike? sram might warranty the crank arm for you. but check to make sure its the crank arm and not the pedal thats bent first.
 
ButtersNZ

ButtersNZ

Monkey
Jun 6, 2013
176
10
Wow great response. Thanks all. Actually it hadn't occurred to me it might be the pedal axle. I'll swap the pedals around later and see if the problem swaps sides too. The cranks are 2011. Probably not under warranty any more.
 
G

GodSmack

Chimp
May 27, 2013
88
0
BC
ButtersNZ said:
Wow great response. Thanks all. Actually it hadn't occurred to me it might be the pedal axle. I'll swap the pedals around later and see if the problem swaps sides too. The cranks are 2011. Probably not under warranty any more.
Click to expand...
Did you know that pedals have right and left hand threads. Do not try to straighten your crank by bending it back. Get new cranks.
 
jonKranked

jonKranked

Detective Dookie
Nov 10, 2005
85,839
24,422
media blackout
sram (owns truvativ) is good with warranties. if they don't outright replace it for you they'll get you a replacement crank arm (not a whole crank set) at a highly discounted price (as crash replacement)
 
ButtersNZ

ButtersNZ

Monkey
Jun 6, 2013
176
10
Thanks for the advice. No reply from SRAM or otherwise, so I'm guessing there's no help to be had. No worries!

I just bought some used FSA Gravity cranks to get by. They came with a pretty looking 38T chainring and E-thirteen bash-ring for $25.
 
G

GodSmack

Chimp
May 27, 2013
88
0
BC
ButtersNZ said:
Thanks for the advice. No reply from SRAM or otherwise, so I'm guessing there's no help to be had. No worries!

I just bought some used FSA Gravity cranks to get by. They came with a pretty looking 38T chainring and E-thirteen bash-ring for $25.
Click to expand...
Now your cookin! Sweet price.
 
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