I've had seatposts slip and fixed them in 4 ways: 1. Clamps with integrated bolt: Lots of blue Loctite, tho' I think there may be a (green?) version meant just for this.
Fiber gel meant for CF seatposts also seemed to work, but I didn't rely on that as long as I did the blue Loctite. Blue L did work, but use it liberally. 2. Separate clamps: Buy a stouter one and tighten it harder. This worked with my Chauncey Curtrivroadclone with elegant, delicate, relieved external clamp that would not tighten down hard enough -- in fact I cracked it, then bought a beefy one and that has worked fine. 3. Shim. Beer can (soda cans are not worthy of Rivendells) metal did work, but this is cheesy. 4. Get a new seatpost (see immediately below). My ultra-expensive and ultra-light and ultra-elegant Syncro ti seatpost kept slipping, about 1/2" per mile, on one of my road bikes, and after playing with shims and Loctite I replaced it with an American Classic in aluminum that fit fine. Both 27.2 mm. While seatpost and seattube combinations have the infinite variety of personality types and sand grains on the beach, this problem does come up often enough on this list that I'd think Riv would want to add the matter to their FAQ page. On Mon, Nov 22, 2021 at 7:33 AM Ben Mihovk <bjmih...@gmail.com> wrote: > I'm having the same issue on two bikes, a 2019 Atlantis with 26.8mm tube > and a 2013 Sam with 27.2mm. Kalloy posts on both bikes. I reset my SH last > night, marked it with a sharpie, and the sharpie mark was buried in the > seat post after a my 3 mile ride. Now...I'm 210 pounds so I get that I'm > going to stress that connection more than most folks. But...I unweight the > saddle on rough spots and bumps and try to keep a lot of weight on the > pedals.With my saddle on the bikes, if I loosen the bolt, the post sinks > in. This is getting a little annoying...I popped the head off a bolt on the > Sam Saturday and it scared the crap out of me (even though I knew it > *could* happen). > > Is there anyone willing to swear by a particular friction grease to solve > this issue? > > Ben, slipping in Omaha. > > > > > > On Thursday, September 9, 2021 at 2:40:07 PM UTC-5 ack...@gmail.com wrote: > >> Anybody else have issues with their seat post slipping on their Clem H or >> any other Rivs? This is driving me crazy. I am infatuated with this >> bike. Favorite ride of all time. I have a perfect 30 mile SF-Marin >> Headlands-SF loop that keeps me sane. What is driving me insane however >> is that my seat post slips down about 1-1.5 inches every time I ride this >> ride, which involves quite a lot of fire trail. I have cleaned the inside >> of the seat tube, I have applied friction grease, I changed the seat bolt >> and greased and regressed it. I have heard that maybe a Coke can might >> work as a shim, but I'd rather resolve the issue without hodging and >> podging. Any thoughts? Advice? Commiseration? Thanks all. I've ridden >> on a Kalloy and a Thomson seat post, and it doesn't matter which seat post >> I use, there is slippage. >> Alex >> > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/rbw-owners-bunch/acfb0779-766e-460c-8ab4-cfd1ce2fe81dn%40googlegroups.com > <https://groups.google.com/d/msgid/rbw-owners-bunch/acfb0779-766e-460c-8ab4-cfd1ce2fe81dn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- ----------------------------------------------------------------------- Patrick Moore Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/CALuTfgvtmsrcudRFGhn0DZxUDWQX_gFSuDRvTJQ24hdCET0waQ%40mail.gmail.com.
