curieux88

Hi,
I got a vintage bike, and I'm trying to learn how to fix stuff while attempting to restore it. It's not in a terrible shape, but my goal is to take it apart, clean it, and then reassemble with few things replaced, such as the chian and the cables.

I got couple questions.
Theres a nut on that bolt. The other side looks the same. Can I just get any crank remover tool to remove the crank arm? I'm just concerned that its vintage (70's bike) may have different threading. I hope it's universal.



Secondly, What's going on with this part? I'm guessing it's some kind of oxidation. Use bar keeper's friend and then rub it?

dsbrantjr

The vast majority of cranks have the same 22mm thread diameter with the exception of certain older Stronglight and TA cranks. https://www.sheldonbrown.com/tooltip...ess.html#sizes
Just be certain that the pusher on the removal tool is retracted far enough to clear the stud so that you can fully engage the crank threads before attempting removal, so that you do not strip them. Also make certain that you have removed any washers present under the nuts before attempting removal.
The corrosion on the stem is similar to that on the cranks and other metal parts of the bike. Most of it can be buffed away but the oxidized metal cannot be replaced so some of the pitting will likely remain.

Mad Honk 

The nut is universal, find one at your local co-op. The oxidation is a bit more than just surface so it may take a bit more than Bar Keeps friend to clean it up. It may take some polishing on a wheel with some rouge. It will clean up, but may take some hard measures. HTH, MH

curieux88

thanks! I might try bar keeps. If it doesn't much, then im giving up on polishing it.

Andrew R Stewart 

Oxidation can be like cancer. Sure the current effects might be "cured" but the long term prognosis can be poor. meaning once corrosion changes the surface material you need to remove enough to get down to fresh stuff. Andy