lowridertommy wrote:
100/90 is called the aspect ratio..
The face (tread) with of the tires is 100mm.
The sidewall of the tire is 90% or the tread width... or.. 90mm as Nate has said..
The width of the rim (inner space between the beads) plays a role in this as well..



I'll get all the measurement's tonight.

Chop whatchya got & ride it like you stole it!
Later!
Stephen