Fork offset adjustment is a chassis tuning variable commonly used in motorcycle racing to tune handling, and the benefits can apply to bicycles as well. Adjusting offset changes the trail, which is the major variable that governs the steering characteristics, having a critical influence on bike handling.
There are minimal tuning compromises for offset adjustment compared to the conventional approach of adjusting head tube angle.This is because changes to offset minimize the effect on other variables, such as bottom bracket height, seat tube angle, squat ratio, and wheelbase.
Reducing offset increases trail, which increases the steering stability. An increase in offset has the opposite effect.