Part of Wolfgang Publications' Biker Basics Series. This is a guide to anyone who builds or modifies motorcycles and needs to know things like: How to determine the rake, or the trail of the chassis. Or how to determine the displacement of the engine based on the bore and stroke. The book also includes the actual thicknesses of the various gauges of both steel and aluminium and information on determining the gear ratio and final drive ration for both belt and chain drive motorcycles. The book is filled with real-life answers to the kinds of issues and problems bike builders faced on a daily basis.