I reached over 240km/h with my 93 Suzuki rf600 r, and it felt like cruising speed, but i was fully tucked in. I've also seen on u-tube, one guy doing 275 km/h on an 03 Z1000, thats why i was surprised when my bike got a bit twitchy at 150. But now i think its just part of the whole joy of riding a naked bike
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