Wheel and tire size effects on suspension geometry
3 posts
How Wheel Offset Changes Affect Suspension and Steering Geometry
How wheel offset changes scrub radius, kingpin offset, track width and wheel bearing load. Covers reading tire sidewall and wheel markings and a step-by-step scrub radius calculation.
How Tire Diameter Affects Scrub Radius, Starting With the Sidewall Numbers
How a change in tire diameter shifts scrub radius through steering axis inclination, starting from sidewall size markings, with simple calculations and their limits.
How Motorcycle Tire Size Affects Trail and Steering Geometry
How motorcycle tire size affects trail, rake and steering. Covers sidewall markings, calculating diameter and rolling radius, worked front and rear examples, and why calculated geometry is not proof of fitment.