Originally Posted by cikal

Hi, I'm looking to overhaul my seatpost on my Bianchi Vigorelli. On Bianchi's website, it says the seatpost is "Bianchi Alloy," except it feels to be carbon fiber to me...it's definitely not a metal of any type - it feels like a plastic (which is why I'm thinking it's carbon fiber).

I just removed the seatpost from the seat tube, and there was a lot of grease/lube, which I removed with a clean rag. I'm about to wash it with some kerosene to degrease it completely. But after that I'm not sure what to do. Is kerosene appropriate to use? Or is there something more appropriate / better to remove grease with?

I'm curious as to what specific kind of grease/lube to use, and where I should apply that. On the inside of the seat tube, and the outside of the seatpost? Etc.

I'm thinking about getting a jar of Phil Waterproof Grease, but it's specifically written that it's for ball and roller bearings? Can I use this on a seatpost?

Also, I'm looking to replace the seatpost (and seat). There is a number on my current seatpost which reads "27.2," but when I measure it I'm getting 270mm. However, the inside diameter of the seat tube is 272mm, which I'm guessing the number of the seatpost is referring to. So when I go to purchase a seatpost, I should purchase a 27.0cm one, correct?

All help is appreciated.

Thanks