IIRC, Professor Higgins wrote an article in MPH years ago describing how he mounted his headlight using the FF3 bolt holes. I'm sure its available in Whitikapedia.
F: Frame Headlamp Stays, Mudguard Stays.
- Thread starter powella
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I don't think it can be FF3 That is the lower link and bouncing up and down like a wild thing.
I agree I think it should be FF33AS as per Chris in #9 of course I will be using a JE stem so its all to be checked out but I do like the idea
I guess every bit of un sprung weight removed is a good thing.......but shaving some off the 30 odd kg's off both wheel assemblies might be more challenging.......
I'll have to look for the article, but I can't visualize how the upper stays are attached to the fork.
I think that I can understand it from vibrac's picture in #14. The two downward tubes go to the eyes in front of the lower part of the steering head and the two upper tubes go to the bolts which hold the handlebar clamps in place. The stays are sufficiently long that I would suspect some vibration.
Vibration Norman, surely not, we leave that sort of thing to the parallel twin boys!
Quite right, not FF3, my fat fingered mistake. I meant the bottom yoke.
When I owned my “Banbury Run Bike” a 1928 AJS K9, a 500cc side valve single, it was a remarkably smooth running motorcycle, considering how ancient it was, that had the headlamp mounted on the bottom of the steering headstock, very similar to the FF33 mounting, and used 2 bent round metal rods threaded at the fork end for attachment to the headstock, and plain at the headlamp end for the headlamp to clamp onto. Most of the time it was fine, but when ticking over the headlamp would vibrate excessively, so much so it snapped the support at the forks end, and required a welded repair.