[azrider]

Originally Posted by T-Crush

My CSi had the same issue. Gradual slip over a 100 mile ride. I tried three different posts, all measured between 27.14 and 27.16 at the relevant points (using Helios dial calipers - I put myself through college and grad school as a machinist). I tried paste, grit and even rock climber's chalk. Some helped, but none solved the issue. This solved the problem once and for all.

http://landlordscycling.com/2012/01/...uill-seatpost/

Between the clamp and the quill, both tightened to spec, it's been rock solid for years.

THat thing is genius.....how the heck do you order one?