Questions for cannondale st500 owners
02-13-22, 10:15 PM
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Questions for cannondale st500 owners
I recently bought a st500 and when I started looking over it better the frame seems bent. When I place a straight edge on all tubes the scale isn’t flat against the tube. It seems like the tubes have a slight crown to them. Is this normal for these bikes? It seems hard to believe the top, down tube,seat tube and seat stays are all bent. This is my first aluminum frame bike and don’t if this is the way they were made.
02-13-22, 10:31 PM
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This is not an unusual observation for these bikes. When they were heat treated, the tubes bowed a bit. The alignment is still supposed to be correct,
02-13-22, 11:21 PM
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Yup, this is how it is/was for this vintage of Cannondale. I had a '91 SR800 that had a pretty good box in the downtube. Was aligned just fine, and rode how it should have. Other aluminum bikes didn't seem to have this problem, from my experience. Cannondale got it sorted eventually.
02-14-22, 12:02 AM
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thanks for the information. I was hoping this was the case. I didn’t want to put a lot of time and money into it if the frame was bad.
