Aluminium Seat post in a Ti frame?

VanNicSteve
VanNicSteve Posts: 2
edited April 2012 in Workshop
As in the title yay or nay ?

To prevent galvanic corossion Is Carbon my safest option ? i quite fancy a thompson silver masterpeice but not sure because of GC

cheers ears

Comments

  • JamesB
    JamesB Posts: 1,184
    probably OK with precautions ; the Al post is probably anodized silver so has a protective layer--in addition to layer of Al oxide, and if use a grease layer too on post should reduce electrical contact.

    Have a look at articles on galvanic corrosion and seems although theoretically Al / Ti should have a GC effect above may reduce likelihood.

    Alternatively look at Carbon Cycles Exotic Ti seatposts :)
  • sungod
    sungod Posts: 17,414
    edited April 2012
    put anti-seize on the post before fitting, it'll prevent corrosion for a long time, just refresh every year or so, or longer if you don't do many wet miles

    for example...

    http://www.parktool.com/product/anti-se ... ound-asc-1

    ...the filler is aluminium in this one

    there are other anti-seizes, with various fillers available
    my bike - faster than god's and twice as shiny
  • majormantra
    majormantra Posts: 2,094
    Anti seize is probably best but grease will be fine if you check it from time to time, maybe every 3-6 months? Having had a stuck post in a steel frame, I understand why you'd be concerned. Huge pain in the arse to shift.

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