Bicycle Mechanics - Fork is bent - just a little
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12-06-10, 05:42 AM
Anyone have a good low-$$$ scheme for straightening steel forks? fixtures, guaging ... How do you do it?
I think one blade is bent forward more than another, and perhaps both are displaced to the right.
12-06-10, 06:10 AM
Most good shops have alignment tools that are used to check the alignment. The tools are also used to straighten the fork if the misalignment is not to severe.
12-06-10, 09:00 AM
My old shop had a nice jig for straightening forks, however, in today's litigious most shops will probably prefer to replace it rather than bend it back. But as long as metal isn't twisted it shouldn't be a problem to straighten it out to a point.
Auchencrow here made an interesting home option:
12-06-10, 10:17 AM
Park has a shop tool, its a rough reference [no dial indicators]
there is also a Park Bending tool
need a solidly mounted bench vise too, and fixture to clamp round steerer tube into vise.
I got a used fork that had alignment problems, one blade was behind the other,
so axle was not symmetrical to centerline, parallel to fork crown.
The procedure got it back where it needed to be.
I've used the v in a sturdy tree trunk. You just need to set it up so you can put force on one leg at a time by bracing the steerer tube and or bridge and use a known straight front wheel and a flat table to check things. Maybe not too precise but I was surprised how easy it was to straighten one out with a little leverage.
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