Originally Posted by
daredevil
Yep, slide it up and down the downtube til you find the right place. Tire size makes a big difference with these. The one I have is built for a road bike and would not work with a very wide tire. I'm not sure if they made different sizes.
When I bought mine many years ago, it came with two wires. One was shorter for steep geometry frames, and the other was a bit longer for touring frames.