bent bike help

6 replies to this topic
  • Alfusious

Posted March 10, 2008 - 01:09 PM


I have a '00 650R that has been unstoppable for 4 years now but I thought it might be a good time for a good overhaul.

To my surprise once I got as far as the rear subframe, I noticed that the damn thing was bent to the right (facing the rear) substantially. Now normally I have no reservations about 10 lbs of persuation on the end of 30" of good old Hickory, but I thought there might be a gentler way that some of you have deduced to aid in said situation.

I could also use suggestions on how to hold the thing down tight enough to try bending it back on the bike?

Any help would be appreciated.

  • resurrection

Posted March 10, 2008 - 01:51 PM


I might try putting it in a vice first ,hate like hell to brake some part of the frame for a hundred $ part ya know

  • gearloos

Posted March 10, 2008 - 09:00 PM


Any decent body shop can probably straighten it right.
And the price will be surprisingly cheap if YOU break it down so the bent parts are VERY easily accessible.
I agree you have to anchor it really well.
Ways we used to fix bent crap:
When I used to race desert trucks we bent a lot of stuff and we just used a hydralic ram to push...harbour freight about 100 bucks back then...Or chain it really well to a telephone pole lol then use a come along to your car frame and "gently" pull.We measured 4 cross points in an "X" to tell how out of square it was. Might try that.
I don't know if yours is symmetrical but if it is, thats a couple ways to fix it.

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  • Thumpmeister

Posted March 10, 2008 - 09:20 PM


Welcome to the club... I know my subframe is bent, and has been for some time now...

I tried bending mine back, but aluminum is such a pain to work with. I was able to stick a large bar across mine, and anchored the base of the subframe to the wall to keep the bike from moving, and bent away. I don't think it really did much, but I like to think it did... :thumbsup:

  • Krannie McKranface

Posted March 10, 2008 - 10:25 PM


Subframe bending 101:

- Subframe on bike, tank and seat off
- Bike leaning against wall, near opening (sticking backwards out of your garage,
leaning against the garage door frame)
- 5' 2x4
- two friends: one to hold the bike upright, one to sight down the frame
- notch 2x4 if necessary with a sawzall
- start bending, 1/2" at a time, and checking for alignment

  • Alfusious

Posted March 11, 2008 - 06:50 AM


A buddy told me yesterday that the first few 650r's came with a "tweak" in the subframe?:thumbsup:

  • jdubb75

Posted March 11, 2008 - 09:00 AM


I don't know how much bend you are talking about, but you may want to take look at the thread linked below. Mine is tweaked a little and it is basically brand new. It must have came that way because I don't think I've done anything crazy enough yet to warrant a bent subframe. It seems to be a common issue.

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