Steel - Aluminum corrosion (lemmy.world)

submitted 8 months ago by evasync@lemmy.world to c/bikewrench@lemmy.world

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I have a steel frame and I'm looking on getting aluminum parts (eg: seatpost, headset etc)

Is Corrosion a concern?

Will I need to service the bike more frequently?

Is lube between the two metals going to make any difference?

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[-] chrisp999@lemmy.world 4 points 8 months ago

You are creating a galvanic cell so if it gets wet you will definitely get corrosion. Luckily the aluminum parts are the ones that are more anodic and corrode so you wouldn't be ruining the frame.

If the lubricant isn't conductive it would at least help.

https://www.mcfeelys.com/galvanic_corrosion

this post was submitted on 13 Feb 2024

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