But it's all relative. 25 is a percentage of 305 (76.25mm) as 45 is a percentage of 195 (87.75mm). Even though that is smaller, if you had 25 on 195's it would be 48.75mm.
But it's all relative. 25 is a percentage of 305 (76.25mm) as 45 is a percentage of 195 (87.75mm). Even though that is smaller, if you had 25 on 195's it would be 48.75mm.