Originally Posted by
JunkYardBike
Really? You mean the modern frames? I had an old 3.0, and the 58cm fit more like a 56/57. They measured the frame c-t, BB to top of seat tube, which had an extended mast.
I kind of assumed it was an older Cannondale, since this is the Classic and Vintage forum. I do not have any experience with newer Cannondales.
I had a 1987 Cannondale T600, in a 23 inch frame. It had a standover that was 1 1/2 inches higher than my 1987 Miyata 215 in a 23 inch frame. The Cannondale was also as tall as my 1983 Fuji Touring Series IV (24 inch frame).
As I recall, that 23 inch Cannondale was measured C to C. I no longer have the bike, so I can't double check it. I believe the Miyata 23 inch is C to T.
I just picked up a 1985 T500 with a 21 inch frame. We'll have to see how it sizes up.