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Uneven fork lengths?

Old 07-05-14, 07:10 PM
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ascherer 
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Uneven fork lengths?

I'm planning to sell a 1972 BSA that I picked up off CL a few years back for my son to ride. He's not going to use it any more and I have no need or room for it any longer. I recall that it always had a bit of a pull to one side, which was made worse one day when he swerved into a parked car - the protruding front axle actually punctured the car's tire - the fellow was hopping mad!

Anyway, in cold setting the forks back into better alignment I can clearly see that one fork blade is longer than the other, I haven't measured it but it looks to be as much as 5mm. I have a pretty good eye and they don't look too badly off center, but I thought of dropping a centerline to see if they're skewed to one side. Even if they are it seems like it would take a pretty dramatic off-centering to have the dropouts that far off. I suppose one solution is to find a donor, but that could take time and I need the space.

Any comments or ideas would be appreciated, thanks!
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Old 07-05-14, 07:21 PM
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Originally Posted by ascherer View Post
I thought of dropping a centerline to see if they're skewed to one side. Even if they are it seems like it would take a pretty dramatic off-centering to have the dropouts that far off. I suppose one solution is to find a donor, but that could take time and I need the space.

Any comments or ideas would be appreciated, thanks!
Its possible to align the ends with a fork end alignment tool and to have both legs skewed to one side at the same time. I think somewhere on the forum there're instructions on a DIY alignment jig...maybe 'scooper' wrote it up. A simple way to check is to draw a straight line on a piece of paper and lay the fork on the line then measure eack legs distance from the line.
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Old 07-06-14, 11:16 AM
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Thanks, #miamijim . I went at it again today using a plumbline and shifted everything over enough for the bike to track straight. interestingly the forks do measure different lengths from the crown joint, but as long as she's running straight I'm happy.

My first time cold-setting. Easier than I thought...steel is an amazing material.
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