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Questions tagged [corrosion]

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23 questions
Newest Active Bountied Unanswered
1 vote
2 answers
53 views

This is a Firmstrong Urban Man 24" Single Speed: I bought it used in a thrift store in the Salt Lake City, Utah, area. As far as I know, the quill stem is not welded to the fork steerer tube, ...
Julius Karl Hamilton's user avatar
  • 313
9 votes
5 answers
2k views

When I spin the front wheel, it feels very rough. Upon inspection, I noticed dark areas on one of the bearing cups (see images). These dark areas are very stubborn. I tried to remove them with 70% ...
Hambergit's user avatar
  • 91
1 vote
0 answers
51 views

I dug an old crankset out of my cellar and discovered that the end of the left crank arm is starting to disintegrate. There were signs of this corrosion when I first consigned the cranks to the cellar ...
Will Vousden's user avatar
  • 5,293
7 votes
2 answers
810 views

I have an aluminium frame and the housing stop paint is chipped with aluminium oxide powder exposed, so I assume the ferrule has done some kind of galvanic corrosion reaction with the stop. I tried to ...
Lucas Myers's user avatar
  • 2,285
12 votes
3 answers
2k views

Anti-seize compound, also known as copper paste, may be used to prevent galling. Galling is a common issue with fasteners in aluminium that makes them stuck, at worst irreparably. For automotive ...
gschenk's user avatar
  • 10.1k
2 votes
1 answer
149 views

I have an aluminum-framed hybrid which has rivet nuts set in it for mounting racks and fenders. I am pretty sure these are steel rivet nuts because they seem to be rusting and causing corrosion on the ...
Lucas Myers's user avatar
  • 2,285
2 votes
1 answer
645 views

Recently I wanted to remove the brake pads of my Shimano 105 disk brakes to check their wear state. When I was about to open the screw which holds them in place I found that some white crust had ...
Benedikt Bauer's user avatar
  • 5,200
1 vote
1 answer
198 views

I suspect similar questions like this have been asked before, but rules on this stackexchange require that I create a separate thread. So please bear with me. I believe galvanic corrosion happens ...
onix's user avatar
  • 11
2 votes
1 answer
621 views

After some research I did not find similar photos/examples to mine so decided to ask. Recently I have bought used aluminum road bike. I did check all other parts and they are in good condition, but ...
Vasyl's user avatar
  • 23
10 votes
4 answers
4k views

Working on a bike that has had significant indoor turbo usage, (i.e. a lot of sweat has run down the headset) and corrosion has bonded the aluminium spacers to the carbon steerer. The steering is ...
Swifty's user avatar
  • 13k
10 votes
1 answer
899 views

See further down for an update on what these cranks look like 5 years later! I have a set of Rotor 3D cranks and I've just noticed that the non-drive-side crank arm is corroding at the end and around ...
Will Vousden's user avatar
  • 5,293
2 votes
2 answers
13k views

I saw a crankset made of 2014-T6 aluminum alloy (so it was claimed). I read that this alloy is somewhere in between 6061 and 7075 in terms of strength. I also learned that it is also more brittle ...
Edmund Fong's user avatar
  • 313
3 votes
1 answer
751 views

My wheelset has alloy nipples which have severely corroded. It needs rebuilt with brass nipples. However, my LBS can't get the spokes out. The nipples are too disintegrated to turn, but not ...
Jim's user avatar
  • 247
4 votes
2 answers
579 views

I recently bought some used Fulcrum CPX 4.5 off eBay. They seem to be in pretty good condition, the hub is fine and wheel runs true etc. However, I noticed that when I moved them I heard dust rolling ...
Jacob Hadnett-Hunter's user avatar
  • 41
3 votes
1 answer
377 views

I'm thinking of doing so for the non-corrosive properties of titanium. Weight isn't an issue. The thing I'm not sure of is the hardness of the titanium vs steel.
Matt's user avatar
  • 977

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