Hi and thanks in advance. I have a Trek 4600 that has RS Judy tt suspension forks on it. They are frozen and I am looking to replace them but i am not sure what measurements i need to look for when purchasing. wondering if someone might know off hand or tell me what i should measure to find for myself.
Steerer tube diameter (it's probably 1 1/8", but it doesn't hurt to measure)
Steerer tube length: New fork steerer must be at least as long as the one it's replacing.
Axle to crown: From the axle to the top of the fork arch where the headset crown race sits. (Probably ~425ish mm)