I just bought a (seemingly) pre-'91 Cannondale R700 road bike with 26" wheels that the owner was selling "just for the parts" (mostly 105 group). He was sure the frame was a write off because the derailleur hanger was broken, and he didn't want to deal with any hassle, so it came pretty cheap.
Of course derailleur hangers can be replaced, right? Problem is that pre '91 and post '91 cannondale hangers are ever so slightly different in terms of bolt spacing and bolt guage. I needed to borrow the mechanic's digital micrometer at the repair shop to show him that the hanger he said was the same as the one I had pulled from the bike were not identical, so convinced was he that they were. Why Cannondale made the slight modification to the specs is beyond me, and though they have a lovely 1 page technical drawing PDF of the two models on their website, I have been told that they only make the post-'91 hanger these days.
So the question is: has anyone found a retail source for the pre-'91 hangers, or has anyone found a work-around that solved the problem for them (such as drilling and retrofitting a different hanger, or getting a copy of the Cannondale hanger machined custom-like)?
Any help or suggestions that will help me preserve the otherwise good frame are much appreciated
PS: drop-outs are not horizontal, so making a single gear of the frame is a hassle that I am avoiding exploring unless it really comes to that!
Thanks.
Of course derailleur hangers can be replaced, right? Problem is that pre '91 and post '91 cannondale hangers are ever so slightly different in terms of bolt spacing and bolt guage. I needed to borrow the mechanic's digital micrometer at the repair shop to show him that the hanger he said was the same as the one I had pulled from the bike were not identical, so convinced was he that they were. Why Cannondale made the slight modification to the specs is beyond me, and though they have a lovely 1 page technical drawing PDF of the two models on their website, I have been told that they only make the post-'91 hanger these days.
So the question is: has anyone found a retail source for the pre-'91 hangers, or has anyone found a work-around that solved the problem for them (such as drilling and retrofitting a different hanger, or getting a copy of the Cannondale hanger machined custom-like)?
Any help or suggestions that will help me preserve the otherwise good frame are much appreciated
PS: drop-outs are not horizontal, so making a single gear of the frame is a hassle that I am avoiding exploring unless it really comes to that!
Thanks.