SV650.org - SV650 & Gladius 650 Forum - View Single Post - Weighting the pegs -physics query.

11-12-07, 02:08 PM

I agree with SVeedy Gonzales, that it's part of a combination of small pressures. I owned 6 enduro and MX bikes before getting sick of washing them, and switched to road bikes. Offroad cornering is similar but different to road cornering. MX riders lean the bike more than their bodies. This means it's easy to weight the outside footrest and side of the tank. Look at this pic of the Greatest of All Time (The GOAT, Ricky Carmichael):
http://www.topcross.hu/108459_carmichael.highpoint.jpg
Weighting the outside peg and side of the tank pushes the tyres downwards, making them dig into the dirt, and grip more.
Theoretically, the same should apply to road cornering, as more downward force should increase grip with the tarmac. This is all OK as far as you continue to lean the bike more than your body, as in Supermoto racing on tarmac:
http://www.amasupermoto.com/gallery_...FJVhROxGckD7sJ
PROBLEM: It's harder to weight the outside peg when your body is leaned MORE than the bike, as in road style. Think of photos of racers losing the front grip, and the foot that naturally lifts off the rest is the outside one, which suggests that it's not weighted as much. But we can put some pressure on the side of the tank with our leg, cos if we're hanging off the inside of the bike, our outside leg is clinging to the side of the bike and naturally putting weight on it:
http://www.motogp.com/en/motogp/moto...=photo_gallery
We can probably exert some of that force down through the footrest too.
Jon.

11-12-07, 02:08 PM	#5
ujoni08 Guest Posts: n/a	Re: Weighting the pegs I agree with SVeedy Gonzales, that it's part of a combination of small pressures. I owned 6 enduro and MX bikes before getting sick of washing them, and switched to road bikes. Offroad cornering is similar but different to road cornering. MX riders lean the bike more than their bodies. This means it's easy to weight the outside footrest and side of the tank. Look at this pic of the Greatest of All Time (The GOAT, Ricky Carmichael): http://www.topcross.hu/108459_carmichael.highpoint.jpg Weighting the outside peg and side of the tank pushes the tyres downwards, making them dig into the dirt, and grip more. Theoretically, the same should apply to road cornering, as more downward force should increase grip with the tarmac. This is all OK as far as you continue to lean the bike more than your body, as in Supermoto racing on tarmac: http://www.amasupermoto.com/gallery_...FJVhROxGckD7sJ PROBLEM: It's harder to weight the outside peg when your body is leaned MORE than the bike, as in road style. Think of photos of racers losing the front grip, and the foot that naturally lifts off the rest is the outside one, which suggests that it's not weighted as much. But we can put some pressure on the side of the tank with our leg, cos if we're hanging off the inside of the bike, our outside leg is clinging to the side of the bike and naturally putting weight on it: http://www.motogp.com/en/motogp/moto...=photo_gallery We can probably exert some of that force down through the footrest too. Jon. Last edited by ujoni08; 11-12-07 at 02:13 PM.