Machining rims

hello all!

I think this is a long shot but i will give it a try and see what happens.

Cycling the other day down London's FANTASTIC roads, i got my rim caught between two bricks which had started to separate.
it was so bad it almost threw me off my bike, recovered and didn't make friends with the floor..
Any who, today I realised that the rim has been scored on the braking surface and now every time I brake I get this annoying noise of the scored rim against the pads.

ok.. so does anyone know where or how i can get the braking surface re-machined?
before anyone says "buy new rims" i cant afford another set.
they are a set of Mavic ellipse's and it stung me for 380 uk bucks.

any idea's people? i'd love to hear responses

I'm pretty sure by re-machining you will compromise the rims strength.

If you get a single matching rim to replace the damaged one, find someone to rebuild it with same spokes (not perfect) and same hub, it will probably cost about the same.

Depending on how bad it is, you might be able to sand off the worst and let the brake pads wear down the rest.

I'd try Butters suggestion first.

^^ finding a replacement Mavic Eclipse rims won't be cheap and may not be easy.

I got in touch with Mavic about a replacement hub when someone was selling a set with stripped threads. I'm 99% sure they said they I'd have to send it to them to repair. The cost then wasn't far off buying a new set. They were very helpful so it's definitely worth getting in touch with them.

Assuming its the rear thats damaged, the other option is trying to find a second hand set of mavic aksiums (which should be cheap) switching the rims. If its the front just RB the front asksium instead as its got a brake track.

Can't say I recommend this for fancy rims, i.e. at your own risk and convenience, but something similar happened to an Open Pro of mine, with raised bits of rim causing brake noise/wear. I used a nice sharp chisel to plane off the raised parts -- hard steel easily sliced the aluminium. I rested the flat bottom of the chisel completely flush on the still flat part of the rim. Worked pretty nicely...

some very interesting techniques i must say!

i think i'm gonna let the brakes do the work and see what happens.
unfortunately i dont have proof of purchase for the rims as i've bought them from the forum. steel chisel and ally rims doesn't sound safe to me, the thing with the ellipse's that the braking surface isn't quite flat. Its is flat but its got groves if that makes sense?
i just hope it doesn't happen to anyone else.

and getting ahold of mavic customer service is ridiculously hard!
much appreciated guys
Kai

Take a picture of the rut/hole and send the bill to the council. Also state it nearly floored you!

Has anyone machinined non-machined rims?

@Wicksie I wouldn't the rim walls won't be as thick.

Bums.

How are you going to machine it anyway? You'd need a lathe with a hell of a big swing! and if the rims aren't absolutely true to start with you'll lose too much thickness.

Why do you need to machine them? If to provide a braking surface just profile the brake blocks to the existing rim, braking will do the rest.

This^

Machining rims is a relatively recent thing, bitd your brake track was made from using the brake.