Originally Posted by
Cheeto
does anyone know what the height is for an 08 trek 3900?
19.5 frame
The length of the fork? The standover height? For the length of the fork: take a tape-measure and start from the bottom of your headset, where the fork goes through the frame, and measure to the dropouts on your fork, where the axle passes through the fork. This should give you a fairly decent measurement. Might want to take the wheel off so as you can go straight down the center of the fork in your measurement, otherwise you get a little longer measurement due to the angle. Maybe also take the measurement from the top of one side of the crown to the bottom of the leg. I'm not sure what the companies base their measurements on. Anybody?