Fort Worth Motorcycle Riders

Excellent find by NickS!

Shite tyres

You can't be bothered with all the poncing around. you'd rather overtake people with buttocks on foam.

Interesting on the difference with the hanging of crouched vs more upright. Guess the question then becomes is the wind resistance from sitting up slowing you down more then what you'd have to slow for to be able to take the turn tucked in.

Yea it is a good read ... but the one thing that stands out to me is that sitting up part. Never heard it said like that or even close to that. It makes some sense but then it dont... I cant decide which way is best without doing it so I guess my days off Ill test it out a little. If I can figure out how to test it.

DemonDuck wrote:Yea it is a good read ... but the one thing that stands out to me is that sitting up part. Never heard it said like that or even close to that. It makes some sense but then it dont... I cant decide which way is best without doing it so I guess my days off Ill test it out a little. If I can figure out how to test it.

In that pic sitting upright moves more weight to the inside further from the wheel to the left in the pic, but higher is also going to increase force to the outside.
http://en.wikipedia.org/wiki/File:BikeLeanForces3.PNG

I'm suspect of the lean angles/speeds in those pictures, he also doesn't have his leg out in the crouched one, he also is not putting his upper body off in the crouched one either. Also the one where he is sitting up you can clearly see more upper body mass to the inside, follow the divider line all the way up.

Think about when you have a passenger, you can feel that weight up high, well, on a 750 you can, lower is better

Yea I have always thought that lower would be better as long as you put your body as far off.

DemonDuck wrote:Yea I have always thought that lower would be better as long as you put your body as far off.

even if you don't hang off your going to increase stability by having a lower center of gravity, draw it on paper and exaggerate the forces in both situations.

Then look at those drawings and think about throwing that through some twisties and how they would feel/react

True ... heck take it out of motorcycles and think about sports .... if you are lower it is easier to change direction without loosing your footing. I would like to figure out where the whole being upright = better cornering speeds comes from.

The upright factor, is that, IF you're still directly over the center of the bike, then the center of gravity is going to me more off center of the bike which means you don't have to lean as far to go the same speed.

If you're tucked in, which lowers your CG, but you stay in that exact possition as you lean, the CG is low, yes, but it's still in the center of the bike, not off to the side, or at least not as far as if you're sitting more upright. Both cases are "wrong" though as you're still inline with the bike and not ideal for fast sharp turns.

Ok but would sitting upright but off the side be better than tucked and off the side?

possibly, but not necessarely. You're starting to get into some rather complicated CG calculation compairsons and a general statement would not work since there are so many factors that would need to be taken into consideration.

I like the "my fat ass isn't flexible so upright is better" explanation the best.