top tube lengh betwween different seat tube angles
Thought I would come straight to the brains department, so here we go if my old TT frame has a seat tube angle of 73.5 (GT edge) and my top tube ctc is 58cm what would this be on a seat tube of 78 degrees as per the cervelo p2c. How is this worked out. What would be the length of the p2c top tube ctc if I went for the plunge and bought one. Cheers ftt, basically what I'm asking is what is the equivalent top tube ctc on a 78 degree seat tube.
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ftt wrote:Thought I would come straight to the brains department, so here we go if my old TT frame has a seat tube angle of 73.5 (GT edge) and my top tube ctc is 58cm what would this be on a seat tube of 78 degrees as per the cervelo p2c. How is this worked out. What would be the length of the p2c top tube ctc if I went for the plunge and bought one. Cheers ftt, basically what I'm asking is what is the equivalent top tube ctc on a 78 degree seat tube.
Hi there.
You came to the wrong place! Where you should have gone is the Cervelo website and checked out their geometry chart for a P2c.
Fortunately I've done it for you... The P2C in a '58' size has an effective 560mm top tube with the seat post in the 78 degree position, swap the seat post back to the 73.5 angle and you get a 589mm top tube.
Cheers, Andy0 -
cheers andy0
