All Questions
7 questions
2
votes
1
answer
68
views
Rusted steel rivet nut on aluminum frame causing frame to corrode
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 ...
- 493
2
votes
1
answer
468
views
Aluminium "white rust" on roadbike. How bad is my situation?
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 ...
- 23
6
votes
1
answer
656
views
Why have my crank arms started corroding?
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 the pedal bore, beneath the surface finish. The drive-side arm is fine.
I ...
- 4,043
2
votes
2
answers
11k
views
2014 vs 6061 vs 7075 aluminium components
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 ...
- 303
2
votes
2
answers
1k
views
8
votes
13
answers
30k
views
Aluminum seatpost stuck to a steel frame
I'm trying to free my aluminum seatpost corroded to a CrMo frame. One of the methods is to heat the aluminum seatpost and then to let it cool. In theory, the aluminum will expand twice as fast as ...
- 349
1
vote
5
answers
12k
views
Is this aluminum "rust" in my frame?
I found an aluminum bike in the trash and it seems like it has been exposed to the rain, especially because some of the metal is slightly rusty.
The frame is a different thing, because altough it is ...
- 1,447