Had good test ride of a couple Cervelos at expo preceding the Philly Tri this weekend. Although lots of high-end bikes were on display, Cervelo was the only brand offering rides; so, having never ridden one, I jumped at the chance to try a P3 (carbon/DuraAce) and a P1 (aluminum/Ultegra). Both had Zipp wheels. Unsurprisingly, I preferred the P3, the only bike I’ve ridden where it seemed absolutely natural/comfortable to get and remain in the aero position.