I finally got myself along to a bike fit today and, as well as refining my current position, I spoke to the fitter about possible frames that would work for me; however, having gotten home and doing some more research I’ve got more and more confused and so I’m hoping someone will be able to help.
NB: Sorry for the length of this post!
Background: I’m currently riding a GT Sportive Comp, a fairly low-end road bike which I picked up cheap from my LBS a few years ago and always viewed it as having a fairly relaxed geometry. The frame is size 54.5cm and (after today’s fit) I’m running a 100mm stem flipped upside-down (I think it is 7deg) and 15mm of spacers. The fitter did say ideally I could loose another 5mm off the stem but he didn’t think it worth it as I currently feel comfortable in the position (we may redress this at a later date).
At the end of the fit we discussed possible frames (I’m planning to start racing so was thinking Cervélo S3, Trek Madone or a Specialized Venge) the fitter recommended I look at Canyon Aeroad and, after some comments @chad may in a podcast some moths ago I briefly considered a Trek Domane. Now to the confusing part, when trying to workout what would fit well this evening I measured the stack and reach on my current bike and have come up with S555/R385, as I viewed my bike as ‘relaxed’ I was expecting to see aero bikes much longer and lower; however when looking at equivalent frame sizes mine seems to be lower and/or longer than most, I’ve added some data below.
Canyon Aeroad (Small) S 534 (-21) R 386 (+1)
Cervélo S3 (54) S 555 (+0) R 378 (-7)
Madone (54) S 560 (+5) R 381 (-4)
(+/- numbers are difference from my current frame in mm)
My confusion mainly lies around the fitter thinking that a size 54 S3 would be (slightly) too big for me and thus recommending a Small Aeroad but, as I read the numbers, the S3 would be much closer to what I need and the Madone would be best. Full disclosure, a LBS has a 2017 S3 Ultegra Disc on clearance for £2500 and I can get an extra 10% discount so I’m keen to know whether it would fit well.
Looking forward to hear what ya’ll think.