Joined: Dec 2004
Posts: 12,561
Likes: 799
From: Middle of da Mitten
Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Bacchetta Quattro, Catrike Speed
Assuming a 700cx25 drive tire with an actual diameter of 26.4", a 53/11 gear spun to 132 rpm would get you to 49.9 mph. I can spin that fast, but at that point I'm way off my power curve and I'm just spinning. Actually applying 2-3 hp at that cadence - no way!