Crank arms replacement

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On my sister's bike she didn't install her pedals correctly and now both of her pedal threads on her crank arms are stripped... The crank set is a TruVativ Firex 44/32/22 w/Isis Spline... is there a way I can just replace the arms for her and also where can I get a replacement or whatever really really cheap? it is a 4 arm crankset and I believe the arm is 175 mm...thanks a bunch whoever!

Originally posted by poppa23
On my sister's bike she didn't install her pedals correctly and now both of her pedal threads on her crank arms are stripped... The crank set is a TruVativ Firex 44/32/22 w/Isis Spline... is there a way I can just replace the arms for her and also where can I get a replacement or whatever really really cheap? it is a 4 arm crankset and I believe the arm is 175 mm...thanks a bunch whoever!

Also I guess I should mention it's a 4-arm system...

Originally posted by poppa23
On my sister's bike she didn't install her pedals correctly and now both of her pedal threads on her crank arms are stripped... The crank set is a TruVativ Firex 44/32/22 w/Isis Spline... is there a way I can just replace the arms for her and also where can I get a replacement or whatever really really cheap? it is a 4 arm crankset and I believe the arm is 175 mm...thanks a bunch whoever!

You can save the cranks by having the shop Install Pedal Helicoil $15.00 each.
or...
You might try the warranty replacement route on the cranks, or at least see if the shop will give you some concession.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3634169852&category=42328&rd=1

Will these work for her bike?

Originally posted by poppa23
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3634169852&category=42328&rd=1

Will these work for her bike?

No they are for a square taper bottom bracket, not ISIS.

Are 175mm crank arms too long?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3637322495&category=42317

Originally posted by cachehiker
Are 175mm crank arms too long?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3637322495&category=42317


too long for who?????:confused: