greezychicken

I have an aluminum Langster Comp and one of the dropouts has an impression from the rear track nuts. Its like the nut was digging into the dropout so there's an indented mark. Is there anything I can do about it? How much would it cost to get the dropouts replaced on the frame?

Am I just screwed now? I'm worried about the wheel slipping out because of this.

cc700

that's why most aluminum track ends have steel inserts. there's not much to do about it and having the ends replaced would cost a lot unless you have some kind of hookup.

are the indents really uneven? i'd just keep using them with the nut in the indent as long as it has a large contact area. if not, you could try repairing the indents with a torch, hammer, and file... but that's probably too dangerous unless you know a lot about working with aluminum. your only viable solution is to use the frame as a singlespeed that doesn't need tension.

norskagent

there is a built-in washer for the axle nut, right?

greezychicken

Yes, there's a built in washer. The indent is a pretty good sized groove on the dropout.

The Messenger

A good welder could repair that by filling in the metal then filing the surfaces back to original. I've done similar projects many times.

thadcombs

forget it. You're fine.

Scrodzilla

fixed.

chevy42083

This is why I use chain tensioners on my GTB.
Spreads the load over the dropout surface so it doesn't mark up the frame at all.
As a side benefit... it helps me center up a 25 tire when there is only mm to spare at proper chain tension.

lverhagen

Seriously though, it does not matter. Back when I had an aluminum BMX bike, the dropouts would get pretty screwed up. As long as your wheel still grips the dropouts without moving it should be fine.