Originally Posted by
chas58
I don't find that rim width makes much difference in tire width. I struggle to measure any difference in my 700c wheels which have a 3mm difference in with for my wheels (16mm to 19mm internal)
Just for kicks I just went out to the garage to experiment.
I measured some extreme widths - 60mm tires. With a rim variation of (30mm to 24mm). I could measure a 2mm difference in width. So maybe 1mm increase in width with 3mm increase in rim size?
I wonder what impacts in in height that may have on the tire. Don't go and measure it for my sake, but I assume it makes the tire taller offsetting the differences in width.