• Actually, I've just had a look at the Cervelo geometry and in this instance, the stack and reach measurements are misleading. A 48mm S3 would actually be a significantly worse fit than my current Cannondale.

    The effective top tube is longer by 6mm, the head tube is 2mm shorter and the seat-tube is significantly more slack - these features conspire to stretch me much further away, especially when you consider that I have to put a significant amount of seatpost out.

    I read your thread on Stack and Reach with some interest yesterday, as I thought it would be interesting to compare the fit of my bikes. Unfortunately, I've come to the conclusion that they're not particularly useful metrics when comparing bikes, as they strip out far too many variables to be useful when you've got a fit already.

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