Hey all, I've never posted on this subforum before, but I'm pretty active over in the racing section.
I'm working towards getting a custom bike in the next year or two, and as I've talked with my frame-builder-to-be, we've talked about a few geometry things that have me thinking.
I'm trying to understand the similarities/handling between different bikes I've ridden, or currently own, and thus I’ve been modeling some bikes in BikeCad (online) for comparison.
Having now hit my head against a wall, firmly & repeatedly, I’m open to explanations from anyone here who can help me out.
The current bike I’m modeling is a Cervelo S1 (my current bike)
The geometry per Cervelo is a given, but it won’t pencil out for me in BikeCad.
If the ST, TT, HT, Front-Center, STA, & HTA are all adjusted to their given values, the Stack & Reach are both off (8mm long & 3mm short, respectively)
One thing that still confuses me, the way the BB looks offset on the bike... but from what I read, Cervelo claims that it isn’t offset at all, and it’s placement is a way to keep the STA consistent through the whole series run?
Terraferma 650b, Mondonico SL and ELOS, Masi Gran Criterium, Trek 610, Breezer Liberty, Georgena Terry Classic
If you're not going to build the frame, a BikeCad model is mainly to visualize differences between different bike designs or to explore design options that you could make to you your builder. But on a computer screen, it's hard to see the effect of small differences in frame geo.