Restomoddding my 1985 Pinarello Treviso and found that the steer tube is about 10mm too long. So I put an aluminum spacer from a threadless setup on it (between the lockring and top hardware). Seems to fit well, but will this cost me teeth?
by McDoof
4 Comments
it really depends how much threading does the top nut have left? Take a picture from the top.
I think it’s fine. Even if both nuts come loose, the fork will still be clamped by the stem
Looks like you might be missing a keyed washer. Without using one, you have a high chance of developing a loose headset…..and possibly loose teeth. You could also use a clamping headset locknut if you can find one.
I hope so because I’ve had a longer spacer than that on my childback tandem for years. I found a thorn tandem fork at a good price with a long threaded steerer and it seemed easier than cutting it down. Iirc there’s a mixture of threaded and threadless spacers on mine, edit the spacers are threaded I mean somenof thebspcers are tabbed to fit in the slot.
https://www.reddit.com/r/xbiking/comments/14s44t6/former_hire_tandem_converted_to_childback/#lightbox