Bicycle Mechanics - ti seatpost in steel frame?

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Surferbruce
05-05-05, 08:28 PM
anything to watch out for using a ti seatpost in a steel frame? i recall hearing something about galvanic corrosion but i can't remember which materials don't mate well.
if i use an anti seize compound is it o.k. for ti/steel?
mtbikerinpa
05-05-05, 08:55 PM
There will always be some corrosion with any dissimilar metals. Ti and steel are less affected than ti and aluminum or even ti and carbon. In any combination, I am a firm believer in a heavy coat of car wax on the post before use. Some grease, but wax will not attract dirt or turn nasty in muck.
Hellbender
05-05-05, 09:06 PM
I would say if you keep the bike out of the rain it shall be fine! And if it doese get gunk clean it lol. :P
anything to watch out for using a ti seatpost in a steel frame? i recall hearing something about galvanic corrosion but i can't remember which materials don't mate well.
if i use an anti seize compound is it o.k. for ti/steel?Grease always worked for me. Antiseize or Ti prep will work but it's nasty stuff it it gets on stuff you don't want it on.
Some grease, but wax will not attract dirt or turn nasty in muck.Does it really matter if it's in the seattube?
orange leader
05-05-05, 09:11 PM
anything to watch out for using a ti seatpost in a steel frame? i recall hearing something about galvanic corrosion but i can't remember which materials don't mate well.
if i use an anti seize compound is it o.k. for ti/steel?
Yeah,
Anti-seize works great. There's a decent shop here in Milwaukee that uses nothing but antiseize on all it's seatposts, bottom brackets, anywhere there's not actually moving parts (bearings) but anywhere things are clamped or threaded together.
It's made specifically to prevent metals from "cold welding" together, which as you fairly accurately put it is actually corroding together of unlike metals.
Rubberside down.
Surferbruce
05-06-05, 07:19 AM
cool deal thanks folks!
LV2TNDM
05-06-05, 02:37 PM
While you're at it, have a shop deburr and "flex-hone" your seat tube to remove any corrosion that's already started in the seat tube. That way you don't mar your nice new post. Doing this and using anti-seize will keep corrosion at a minimum. But don't forget to pull the seatpost out occasionally to check for problems (annually or bi-annually). How often depends on conditions, mainly how much water your bike's exposed to.
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