[QUOTE=sendler;377883]
Quote:
Originally Posted by 3-Wheeler
I don't see any inherent advantage of a bike with a high CG offering a reduction in lean angle.
QUOTE]
Raising the cg of a motorcycle/ rider reduces the lean angle that is needed for any given lateral acceleration by increasing the radius that the cg moves through as it leans. The higher cg is now displaced laterally more to the inside of the contact patch than the lower cg would be for the same angle.
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Wide tires also corner less for any given angle because the mass is moving in as you lean but the contact patch is also following it to the inside as well so there is less net offset than with a narrower tire and wheel.
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Hi,
OK, I think I see your point about a higher CG causing less lean angle to negotiate a turn on a typical motorcycle.
This phenomena is strictly based on the tire width of the front/rear tires.
When I initially made my comments that lean angle is NOT affected by CG, my intent was that the acting forces are limited to A-B.
However, tire width of any motorcycle tire changes the acting forces to A-C. With the forces acting in this plane, CG does indeed affect the resulting lean angle.
I had to include a graphic that would clearly show the force path that we are talking about. A graphic would have helped me from making a wrong assumption.
The force path A-C needs to be modified in location at C based on the amount of lean of the bike. The more lean, the wider the C location moves from the bike centerline.
Jim.
