Rethread a hub

I suspect I already know the answer, but I'm hoping nonetheless...

Today I found that when I pedalled my rear wheel didn't turn. After a quick inspection it was clear that the sprocket had stripped the threads on my hub. Ordinarily, I would mourn, then excitedly move on to thinking about the new purchase I have been forced into making, however the hub in question is a rather nice mavic pista hub, which are quite hard to come by and I'm quite unnaturally attached to it.

So the question is, has anyone had any luck, ever, attempting to 'rethread' aluminium threads, there is still a decent 'crest'. I know you can silver solder steel, so is there an equivalent. Any help would be much appreciated...

I've never heard of anyone doing this. Since you'd have to strip down the wheel to do this, it's much easier (and cheaper, and probably more reliable) to get a new hub.

Mourn and move on. Aluminium can't be joined by soldering or brazing (hence you never see brazed alu frames).

I suspect I already know the answer, but I'm hoping nonetheless...

Today I found that when I pedalled my rear wheel didn't turn. After a quick inspection it was clear that the sprocket had stripped the threads on my hub. Ordinarily, I would mourn, then excitedly move on to thinking about the new purchase I have been forced into making, however the hub in question is a rather nice mavic pista hub, which are quite hard to come by and I'm quite unnaturally attached to it.

So the question is, has anyone had any luck, ever, attempting to 'rethread' aluminium threads, there is still a decent 'crest'. I know you can silver solder steel, so is there an equivalent. Any help would be much appreciated...

It´s posible. But you need to put the hub out of the rim, then fill the damaged thread with TIG and then put the hub on a lathe and make new thread.

Possible but with a little work and probably not the cheapest option.

I had this happen to a Mavic Pista, it wasnt completely threaded though. I tried some older Regina 3/32 sprockets on it, which always had a finer thread themselves and a bit of 'bite' and it worked flawlessly. I suppose it all comes down to how much damage there is.

thanks for all the responses...I have noticed that two or three of the first (outside) threads are still in tact(ish) and, if I flip the sprocket around, it tightens to a pretty good torque but obviously messes up the chainline.

So maybe a different sprocket might be perfect for the job...along with a load of loctite...

A neat fitting sprocket might get you going, not all threads are similiar!

How did you get on?

originally I'd written I'd found another sprocket which seemed to torque on what was left of the threads. Nevertheless, after a short-ride it too stripped what was left of the hub threads.

So all in all, no success.