Which is better and for what? 20 years ago, some Norton specialist in the UK told me to look for a 850 frame and yokes, due to its better steering angle. That was the frame to build a hot bike on. I recently heard that is untrue, that the 750 has a better steering angle and will turn quicker in. Does it really make a difference? I see some of the vintage Norton race bikes seem to have tight angles and 18" wheels but the original production racer was based on a 750 frame and 19", is there any correlation?