I'm 6 foot on the dot. You can see how high I have the seat post for comparison. I would say that it fit me perfectly and that at 6'3" it would be fine. Have you taken a look at the sizing info on the on-one website? http://www.on-one.co.uk/help/what-size-bike/
If your local just pop over with your mate and take a look. PM me for my address etc - Crystal Palace just at the end of the new overground line.
I'm 6 foot on the dot. You can see how high I have the seat post for comparison. I would say that it fit me perfectly and that at 6'3" it would be fine. Have you taken a look at the sizing info on the on-one website? http://www.on-one.co.uk/help/what-size-bike/
If your local just pop over with your mate and take a look. PM me for my address etc - Crystal Palace just at the end of the new overground line.