Just a guess, but maybe the bolt is stripped, or just really dry? I know when my seat post was slipping down, I removed the bolt and was surprised to find a few threads had been stripped and it was really dry. I replaced the bolt, applied a bit of Phil grease and was able to tighten the bolt quite a bit more without feeling like I was ham-fisting it. Beyond that, hard to say. That post is very similar to the lowly Kalloy I have, and it's only slipped on me once after I crashed and the bike flipped upside down, landing on the saddle. I wonder if a complete dis-assembly of the post, cleaning the sliding contact surface (maybe it somehow got some grease in there? No idea how that'd happen but worth looking at), and inspecting the bolt would be a good start.
On Wednesday, January 6, 2016 at 9:21:15 AM UTC-6, Christopher Wiggins wrote: > > Reid, > > Really hard to diagnose without actually putting a hand on it, > but.......how long is the wrench? If it's a small (2" long) wrench, it > likely isn't long enough to provide the torque you need to really tighten > the post. The wrenches we use in the shop are 4-5" long. > > Depending on how old the post is it may not be a bad idea to pull the bolt > and apply a bit of grease. > > I hope that helps. Good luck. > > On Wednesday, January 6, 2016 at 12:05:08 AM UTC-5, Reid wrote: >> >> OK, boosting off of the "slipping seatpost" topic ... >> >> My two Rivs both have what I think is the Nitto S65 Crystal Fellow >> seatpost, the one with the single adjustment bolt for the angle of the >> seat. The seatposts will not keep the seats at the angle at which I set >> them. Over just a few miles, the seat nose starts going up, the back going >> down. In the description of the seatpost on the Riv web site, it even says, >> "put some muscle in to it" to get it to stay. I've tried the "gorilla" >> treatment on both posts and no luck. >> >> Does anyone know the secret for these things? I'm quite disappointed in >> Nitto and Riv unless I can find some way to make these work. Oh, and I'm a >> flyweight kinda guy, well under 130 lbs, so that should not be an issue. >> >> Any ideas much appreciated. >> >> Reid >> > -- 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.
