150 vs. 160 Fork Headtube, Trail & Flop

The Story Behind the Images. Looking at 150 vs. 160 Fork Headtube, Trail & Flop

I wrapped up the 150 vs 160 comparison and needed an image. I grabbed BikeCo’s demo SB130 (with a stock setup) and mine with the 160 fork and headed out. And struggled. I couldn’t get an image to show with any level of credibility the difference in crown race height. With a 10mm steer spacer in hand I tried to figure out how to photograph such a small difference.

Some quick math said the axle to crown height difference when the forks were standing straight up would be only 1.76%. Less when you factor in the headtube angle when viewed straight on.

Intrigued I downloaded a trial of AutoCad recalling my old design days. Continue reading 150 vs. 160 Fork Headtube, Trail & Flop