Originally Posted by Jakey
Ask him what gear combo he was using when he did it... then break out the gear calculator and tell him he is your hero, cause he can push 220 rpms
Actually, that might not work, coz 53/12 has a roll-out of 9.31 meters, which = ~143rpm at 80kmh.
Ok, I couldn't do 143rpm, but some could, i guess.
53/11 = 131rpm at 80kmh