Feb 8, 2012 · the 80/100-21 is all i run on DIRT.. having a narrower tire front or rear means better turning and will "cut" better through sand and silt.. on street there wouldn't be a noticeable difference in feel or handling between the '80 or 90'.. UNLESS the tread designs were different of course.. and mount the 80 up before judging how skinny it looks.

90/80-R21 tires are 1.42 inches (36 mm) smaller in diameter than 100/90-R21 tires and the speedometer difference is 5.1%

100/80-R17 tires are 1 inch (25.4 mm) smaller in diameter than 80/100-R18 tires and the speedometer difference is 4.1%.

TZiQ.

5we3iqo1yb.pages.dev/204

5we3iqo1yb.pages.dev/49

5we3iqo1yb.pages.dev/291

5we3iqo1yb.pages.dev/331

5we3iqo1yb.pages.dev/137

5we3iqo1yb.pages.dev/290

5we3iqo1yb.pages.dev/187

5we3iqo1yb.pages.dev/219

5we3iqo1yb.pages.dev/283

80 100 vs 90 90 21