120/90-17 vs. 130/80-17 Tire Sizes. The 130/80-17 tire size is a popular option for the DR650 and other bikes. Many riders mistakenly figure that “wider is better” when it comes to motorcycle tires.

It supposedly fits any 17″ tire, from a width of 4.00 to 5.10 or 110/90-17 to 130-80-17. When I laid the tubes down, one over the other, ... Also — see below for more information on finding a ...