the smaller size fits well with a 110/120 stem and a seat that is a little higher(6cm) than the bars. ANy smaller stem would cause my shoulders to turtle.
the larger one fits well with a 90/100 stem and the seat is almost flush with the bars..maybe 1/2 cm.
which would you suggest for a race machine?
I'm leaning toward the larger frame since I would guess the bar height would allow me a little more control over mounts/dismounts. Also the shourter stem would give me a more twitchy response for technical control rather than a road smoothness.
However I hear people say size down for cx...so I am a tad confused.
I would also hope to use the bike as a commuter.
thanks for the assist all. I do appreciate the input.
BMC Team Machine SLR01 w/ Ultegra Di2; Trek District belt-drive single speed
I talked with three dealers before buying mine. Two said to ride a size smaller on a 'cross bike than on a road bike -- a minimum of 1 cm smaller. The third said to ride the same size or a size smaller than my road bike. I ended up with a 'cross frame 0.3cm shorter than my road bike (smaller, but less than a full "size" smaller). The fit is absolutely fine for smooth roads, but . . . if I had it to do again, I might well go with a smaller size in order to be less stretched out. (On rough terrain, a little more upright and compact would be good.)