2024 Yamaha R6 Top Speed. How tall (seat height) is a yamaha r6 race? With an aggressive bore and stroke reading of 65.5 mm x 44.5 mm, the r6 engine stands out from its contemporaries, most of which capped at around 13,500 rpm.
Meanwhile, modified builds can touch 165 mph thanks to crucial gearing, horsepower and friction. From the r125 to the r1m, we’ll show you the incredible speeds these bikes can reach.