When I put my tire size of 25.5 in and gear ratio of 3.42 in It says my calcualted tire is 27in . Anyone know Whats up with that? and when driving my speedo says i am doing 60 mph when I am actually doing 65.
I am swaping gears and rims and tires this week and I would like to know how to fix this. The new setup will be a 26 in tire and a 3.73 gear.
thanks for your help