Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Has anyone got tips on spreading an old steel front fork to fit a more modern hub? I've got minimal tools. I thought a car jack might be a good way to go..

share|improve this question
Steel forks don't really cost that much -- I'd much rather buy a new/used one with the right width instead of risking small cracks that could lead to a rather painful kiss-the-asphalt experience later on. – arne Oct 10 '13 at 8:08
How much do you need to spread it? A steel fork should be able to be "sprung" a quarter inch or so, without the need to bend it permanently. – Daniel R Hicks Oct 10 '13 at 12:26

This to be done with caution and patience. I recently did it using a long 3/8" carriage bolt that I purchased from the hardware store. I placed a washer on the bolt screwed on two nuts then another washer. Install the bolt in the axle notch of the forks. slowly move the nuts outward gradually spreading the fork. I did it slowly over several hours although I don't know if it is really necessary. You will want to go 3mm-4mm wider than needed as the fork will spring back a little when the bolt is removed. You must also be aware that the old style forks do not have the recessed seat ( known by some as lawyer lips) to retain the skewer if it comes loose.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.