1. Day 1 of a bike purchase or any significant change in bike set up- seek the BEST fit- not just bike shops with certified Joe’s- people that actually know biomechanics….my top two: Eileen Olson and John Cobb. I visited Eileen late last week and her Ph.D in biomechanics makes a world of difference. Cobb I was lucky to meet early in 2007, when he visited a local Dallas shop and he fit me on my P3. I should have never changed the way he set me up (I did so late in 2008) but my body changed over the first 2yrs racing and I upgraded some equipment.
2. Never ride a frame too small for sake of not spending uber dollars- little component changes add up in cost & only mask what’s bad- better to invest up front than pay more in the end (in physical and monetary damage). Even if you’re fitted to it, if it takes ridiculous effort to make it feel sort of OK, it’s not OK.
3. Unless doing an acceleration test, 700s trump 650s in comfort and effort to keep rolling at pace