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Old April 27th, 2016, 02:09 PM   #44
Misti
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Name: Misti
Location: Vancouver, BC
Join Date: Oct 2010

Motorcycle(s): currently: Yamaha YZF 250 dirt/motard

Posts: 787
From Twist of the Wrist II:

"Considering that most machines in a static or constant speed situation have a 50/50 weight distribution (+or -5.0 percent) front-to-rear, we begin to calculate the guidelines of correct acceleration through a turn. By the numbers we want to transfer 10 to 20 percent of the weight rearwards, using the throttle. Technically, this is 0.1 to 0.2 G of acceleration. Simply put, it's the force generated by a smooth fifth-gear roll-on in the 4000-6000rpm range on pretty much anything over 600cc. That's not much acceleration, but it does the job."

Traction Specifics:

"When we talk about cornering we are talking about traction as the rider's main concern. To determine an ideal scene for traction, machine-wise, we start by simply measuring the contact patches of the tires to discover what the basic distribution of loads should be while cornering. Roughly speaking, those measurements show that 40 percent of the total load should be up front, 60 percent at the rear. Bikes set up for racing and real GP machines carry more rear rubber, changing the useable load bias (possibly to as much as 70 percent on the rear) to favour hard acceleration coming out of turns. Each bike's exact ideal weight distribution may vary a bit from the basic 40/60 percent rule. The rider's task is to match the exact load specs of his machine with expert use of the throttle."
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