Snapped Clem seat binder bolt

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i

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Apr 13, 2024, 10:07:24 PMApr 13
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I was installing the seatpost on my wife’s new Clem, and could not get the seatpost to stop turning. Eventually I broke the bolt.

I remember I had this occur on an old Clem I had as well. 
IMG_0343.jpeg

Danny

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Apr 13, 2024, 10:22:14 PMApr 13
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I’ve had that happen on a new Riv before.

This is from a Riv newsletter last year:

Also, make sure to grease the binder bolts before you tighten them down. They ship to us dry and they have a tendency to gall and not tighten down enough unless they're greased up.

-Danny


On Sat, Apr 13, 2024 at 9:07 PM i <belopol...@gmail.com> wrote:
I was installing the seatpost on my wife’s new Clem, and could not get the seatpost to stop turning. Eventually I broke the bolt.

I remember I had this occur on an old Clem I had as well. 

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Kim H.

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Apr 13, 2024, 10:39:25 PMApr 13
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@Danny -
Very good to know. I thank-you for the information. I think I will grease mine as a precaution. I'm sure that Igor appreciates it, as well.

Kim Hetzel

Igor

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Apr 14, 2024, 11:25:39 AMApr 14
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Agreed, thanks for sharing the information Danny. Per suggestion by Alex W, I also will swap the bolt for a black socket cap instead of stainless. Stronger but no galling..

Joe Bernard

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Apr 14, 2024, 2:11:18 PMApr 14
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I've come across several 26.8-post Rivs where the stock post actually seemed to be 26.7. If you're using the stocker I'd ditch it for a Nitto. 

Joe Bernard 

Kim H.

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Apr 14, 2024, 2:26:28 PMApr 14
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@Joseph -
Do you have a specific web link for purchase ?  Silver preferably.

Kim Hetzel.

Joe Bernard

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Apr 14, 2024, 2:54:29 PMApr 14
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Kim H.

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Apr 14, 2024, 3:02:33 PMApr 14
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@Joseph -

I am referring to a Nitto seat post binder bolt that you suggested to replace the stock one on my Clem. I am seeing from your web link for a Nitto S65 Crystal Fellow Seat Post. ...or am I missing something ?

Kim Hetzel.

Joe Bernard

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Apr 14, 2024, 3:24:59 PMApr 14
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The binder bolt snapped because the seatpost was too small. The bolt and post need to be replaced so this doesn't happen again. 

Kim H.

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Apr 14, 2024, 3:37:36 PMApr 14
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@Joseph -
Thank-you.

Justin Kennedy

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Apr 15, 2024, 9:53:22 AMApr 15
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Same thing happened on my brand new Platypus last year. Seatpost was slipping and twisting and I overtightened it and snapped the bolt. Replaced it with a spare from my bolts tray and it hasn't slipped in almost a year. 

Ed Carolipio

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Apr 15, 2024, 10:08:28 AMApr 15
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I have a bad habit of snapping the original binder bolt when making adjustments for fit. I just keep a bunch spares around and stash one with the tools/spare tube for when I ride.

--Ed C.
Redondo Beach, CA

Mike Packard

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Apr 15, 2024, 10:20:01 AMApr 15
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I have never snapped a binder bolt but FWIW when I had some slipping on my Atlantis post, my LBS spun the inside of the seat tube with a flex hone attachment on their drill and that helped a lot.

mike in atx

Patrick Moore

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Apr 15, 2024, 3:58:58 PMApr 15
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Blue Loctite kept a slightly undersized thinwall Syncos titanium post from slipping (1" per 2 miles) on my 1999 Riv Road custom fixie gofast until I replaced it with an Am Classic and then with a 7410 Dura Ace. 

Blue Loctite can do most things: do your taxes, weed your garden, watch your toddler, prepare a gourmet meal. I used it liberally on the cradle of a Nitto 1-bolt seatpost to keep the very improperly set up saddle from changing angle on me mid-ride.

I do agree that a new seatpost or honing are better fixes, but FWIW.




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Patrick Moore
Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum
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Richard Rose

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Apr 15, 2024, 6:57:20 PMApr 15
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Gregory Kagay

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Apr 16, 2024, 11:50:54 AMApr 16
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My greased Roadini binder failed almost immediately with very little torque applied. Seems it was slightly too short for the job. Replaced with this bolt and this nut. The new bolt is ever so slightly long for the application but it works great. The blackish nut is not my preference but I live in the country and was eager to source a robust solution. (And not much of it shows as most of it is hidden inside the seat lug.) Delivered, this was a $30 resolution (which makes me feel foolish); Rivendell could do so much better here.

Diana H

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Apr 17, 2024, 12:10:01 AMApr 17
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I also snapped the seat binder bolt on my new Platypus. No amount of tightening would keep my post from sliding. I posted about this on Reddit and somebody told me that I needed to grease the threads. When I tried to remove the bolt it snapped. I replaced with a random bolt from a hardware store and used grease. Hasn't slipped again.

Michael Kashuba

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Apr 17, 2024, 12:28:18 AMApr 17
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Very interesting indeed. About a year after Rivendell built up my orange 60cm Appaloosa, I was on a “Bike Around the Buttes” ride in Northern California and my seat post began gradually slipping down. I tightened it a bit more at a mid-ride rest stop, and it broke in two…. without much torque at all. I was amazed…..Luckily, I was able to “borrow” a less essential but same size bolt from my pannier rack, and everything has been fine the last few years. Is it possible that Rivendell received a bad batch of bolts? Odd….
Sent from my iPhone

On Apr 16, 2024, at 9:10 PM, Diana H <diana....@gmail.com> wrote:

I also snapped the seat binder bolt on my new Platypus. No amount of tightening would keep my post from sliding. I posted about this on Reddit and somebody told me that I needed to grease the threads. When I tried to remove the bolt it snapped. I replaced with a random bolt from a hardware store and used grease. Hasn't slipped again.

Nick Payne

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Apr 17, 2024, 3:20:57 AMApr 17
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On Monday 15 April 2024 at 4:11:18 am UTC+10 Joe Bernard wrote:
I've come across several 26.8-post Rivs where the stock post actually seemed to be 26.7. If you're using the stocker I'd ditch it for a Nitto.

On my Appaloosa the internal diameter of the seat tube was actually slightly over 26.8. I tried three different 26.8 posts I had, including the one supplied with the frame, and they were all slightly loose with the binder bolt not tightened. As I had a 27.0 Nitto and an adjustable reamer, I reamed the seat tube so that the 27.0 post was an exact fit in the seat tube.

Nick Payne
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