I've read many times on this forum that some Riv owners find their seat posts to slip down. I'm the same. My Atlantis still has the stock Kalloy seatpost, which has been slipping since I got the bike. On road or smoother trail rides, it might not slip every ride, but every few rides it'd drop a millimeter or two. Riding single track and bumpy roads would drop it a good centimeter at times. I was frustrated.
But now I've solved it! I started by removing the post and cleaning ALL the grease off the post and the inside of the seat tube. With the whole thing clean as a whistle, I applied grease ONLY to the inside of the seat-tube, and ONLY below the lug. Basically i'm trying to keep the clamping mechanism grease-free. I didn't put any grease on the post at all, as it would get lubed up when I installed it as it slid past the seat-tube grease. Now the secret - I applied blue loctite ONLY to the section of the post that would be inside the lug/clamp, which is about an inch of the post. If you're not sure where to place it, you can put a strip of tape around the post right where it exits your frame. I usually do that anyway so when I remove the post for whatever reason, I know exactly how deep to install it next time. The purpose of grease is to prevent direct aluminum/steel contact resulting in galling. Loctite does the same thing - it provides a barrier between the two, while also providing a bit of a sticky surface rather than slippery. Don't worry, it won't cause your seatpost to get stuck in there forever. It's designed to prevent exactly that. I've been doing this for about the last month and my post hasn't dropped once, even after a heavy saddle bag was strapped below it and I rode rough trails. I loosened the clamp to verify it was free and it spun easy. Problem solved! Hope this helps others -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
