If it had a 6spd = it wouldn't pull it. I've got one and all I did was go 1 up on the front sprocket and 2 down on the rear = made the bike much more usable. My comment about it not pulling a 6th gear is simply because...if I were to re-do my gearing again, I'd have gone up 1 in front and let the rear alone. (it has a hard enough time pulling what I have now and will do 70mph in fourth with 5th acting like an overdrive...that it barely pulls with in any wind or up grades above 60mph.) The TU has a little engine that LOVES to spin up. (and I wouldn't trade my bike for any other 250!) Ps. 14,000 trouble free miles now!