This is fascinating. During a saddle swap I took a S83 post off my Clem & put a Kalloy in its place. No slip wig either. Then I got my Gus. Wanted to put the S83 on it. Absolutely could not get it to go in the Gus seat tube. Kalloy slid right in. Both are 26.8. Now I am suspicious the Kalloy might slip in the Gus once I get it on the trail.
Sent from my iPhone On Jan 26, 2023, at 8:57 PM, Paul M <mottpa...@gmail.com> wrote:
My recent Susie calls for a 26.8 seatpost but with the stock Kalloy seatpost there is a fair amount of play. I had a 27.0 Kalloy seatpost that fit snug and solved the problem. I'm not sure a Nitto 26.8 seatpost would have solved the problem for this frame. On Thursday, 26 January 2023 at 17:06:49 UTC-8 J wrote:
I had awful seat post slip on my Romanceur when I first built it up. I finally resorted to $30 carbon friction paste and haven had a slip since. Also had the same slipping on my old All rounder a shop out of town I was visiting showed me the friction paste fix. Both seat posts were Nitto S65
On Thursday, January 26, 2023 at 6:24:38 PM UTC-5 Joe Bernard wrote:
The brand matters if I keep finding that one a little undersized and was able to solve the problem with a Nitto. Which is what I did, which is why I mentioned it.
On Thursday, January 26, 2023 at 2:25:49 PM UTC-8 Garth wrote:
I'll second the greasing the bolt head and threads. I had a recent experience with a Unior Truing stand whose uprights were out not parallel. They were adjusted using 2 bolted collars, not unlike Park stands. Neither had a lick of grease in the threads, and one wasn't even set. Loosening them, I heard that awful sound of metal on metal, so tightening them as they were wasn't happening without some lubricant. I applied some anti-seize compound on the threads, and then they were easily tightened like cutting butter.
The brand of seatpost has nothing to do with it slipping in the frame, given it's the correct diameter. Do measure.
I had this on my Atlantis, took it to my LBS (Cycleast) who used a cordless drill with a flex cylinder hone brush attachment for about 60 sec and never had another issue.
mike
On Thursday, January 26, 2023 at 3:11:21 PM UTC-6 Joe Bernard wrote:
I'd go ahead with the Super Grip and crank down on the bolt a little more. The worse that happens is you snap the bolt and need a new one but that's not likely. If this doesn't work then you just got unlucky with the diameter on the post, I've run into this on a couple frames with it.
On Thursday, January 26, 2023 at 12:57:32 PM UTC-8 jak...@me.com wrote: I did swap my stem out for a Nitto, but did not have issues with slippage for the few miles of shake-down use on my new Sam. It also held the bike for it's build, but that is no real test. I left the binding bolt stone dry as it is a nylock. This is not an area where I wanted to over-torque and torque specs are generally fairly low for the post due to the surface area involved. I use anti-seize on the post, and the frame has a ton of anti-corrosion goo, so it's pretty slippery in there.
Here is what my Sam Gap look like for comparisons.
Is there grease on the binder bolt threads. Is the head of the bolt greased where it contacts the frame? If either answer is no, you just may not have the binder bolt tight enough.
Anyone have any issues with the stock seat post (the one included with the frame) slipping with the latest sam frames? Happened to me on my first shakedown ride yesterday.
I have a new nitto stem and some park tool supergrip on the way but was curious if anyone else experienced this. Or if there's any advice on using the park tool super grip?
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Peter White
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