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Old 03-16-12, 08:43 PM   #1
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Replacing forks, measurement question

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.
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Old 03-17-12, 02:03 PM   #2
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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)
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