aka Phil Jungels
Join Date: Apr 2005
Location: North Aurora, IL
Bikes: 08 Specialized Crosstrail Sport, 05 Sirrus Comp
Then, remove a tire, and measure the interior rim width. If there is thingys sticking out toward the center of the void, that's where you take the measurement. Those thingys are the ridges that help hold the tire on the rim by biting into it.
Yes, 559cm is the metric equivalent of 26", and 50cm is the equivalent of 1.95" (which happens to be the width of your current tire.)
Look both rims over real close, you might find that tell-tale 559X20(or so).
Last edited by Wanderer; 10-02-08 at 06:46 PM.