i cruised on the freeway for about 10 miles today. I am ONE TOOTH smaller on the rear sprocket, and my bike was crusing at 75 with about 1/3 throttle. my buddy on his CRFX450 said that his "comfortable" cruise speed was around 60 (stock gearing). All i can say is...i would NOT want to travel any significant distances on the freeway with that bike. The noise and wind and vibration almost drove me nuts.