Carbon Fiber Seatpost In Aluminum Frame

Given the potential for galvanic corrosion where carbon and aluminium are in contact in a wet environment a carbon seat post is probably a good idea in a full carbon frame.

Carbon fiber seatpost in aluminum frame. The bike shop sent me a little sachet of carbon assembly paste to try. Re grease the post and the inside of the seat tube and then. I ve subsequently bought a pot of the carbon paste and whip the post out every 6 months or so for a quick wipe down and reapplication. I gave the seatpost a light coating and reinserted it.

With a steel aluminum or magnesium frame spray oil or better yet frame saver into the seat tube to arrest the corrosion process. When inserting an aluminum post into a carbon frame it is important to apply a barrier between the two surfaces. A galvanic reaction occurs between the two different materials and this acts to eventually bond the post to the frame. A lot of road bikes come spec d with aluminium options until you reach around the.

The seatpost now stays put without having to tighten the clamp too much. A carbon seatpost is lighter and promotes comfort seatposts are generally constructed from aluminium or carbon. This is also true when installing a carbon post into a steel or aluminum frame.