Mechanical Trail

What is Ground Trail

Ground Trail is makes reference to an imaginary line on the ground. It means nothing. The only geometry feature that runs along the ground on a bicycle or motorcycle is contact patch.

Only ignorant people make reference to ground trail. Sorry folks.

The Math

• Offset = Wheel Radius * SIN(90 - Head Angle) - Mechanical Trail
• Mechanical Trail = Wheel Radius * SIN(90 - Head Angle) - Offset

Charts