Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)

my poor bike

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motopunk:
bad luck...but nice to sea, that only your bike is broken and you are okay...   :-)

i agree with motorrad.. the welds on the y are broken like cuttings with a saw..   :|

LundMx:
Bummer  :|.

DSPMOTO:
here are some more pic. I wont upload all of them since you can look at them on my photobucket. feel free to post a photo from there if you would like to discuss it. I should also add that this was my 2nd time riding the bike since I had it down to bare frame to rebuild. when it was apart there was no visual sign of anything wrong with the frame. however I did case a jump the day it broke, thinking that maybe from the shock the frame received from the case is maybe what caused it to break. @cmotodad, no there was no excess vibration,i wish there was so I wouldn't of had to go through the wreck. there was no signs at all that this was going to happen. bike rode like it always did.

don46:
It looks like the left downtube showed signs of failing prior to the failure, the right side looks like a fresh failure.  This would be another argument for Sandblasters front head stay, had you had one it may have prevented complete failure. Welds appear to have held. I do believe that the factories use the radius tubing to prevent failures like this. Seems like an old welder told me one time that you never weld square, always radius you pieces to prevent failure.

This was a 250 so, all with 500's better look close, really close.

cmotodad:
I think the headstay had a crack too. Why would the stay have a crack since it is behind the break? Just a thought.

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