Centrifugal forces

[spamanglenn]

I read rapid and spoke to geoff ware about a 600,750 and 1000 cc gsxr test at phillip island.Even though he had his project gsxr1000 there with light wheels etc,he said the 600 turned much quicker.After chewing on it and knowing each bike weighs about the same,I finally understand why.Its the centrifugal force of the engines crankshaft.As a 1000 cc has bigger pistons and a longer stroke than a 600,its crank is heavier.Therefore just like heavy motorcycle wheels don,t like fast changes of direction without a lot of effort nor do crankshaft at 10-12000rpm plus.A racer mentioned to me that they often use this force by using high revs in a given corner to help hold the bikes lean angle.I know yamaha reversed the rotation of their engine to change the characteristics of the force and optimised the bike around it.Thats what i like about bikes,theres always something to learn. Glenn the Spa Man<i></i>