Broken road riders, assistance please
Moderators: Bearbonesnorm, Taylor, Chew
Broken road riders, assistance please
Im currently suffering from slipping seatpost.
I have a new ritchey wcs al post, measures 31.4 in the new BR frame which measures 31.8
Ive tried a chromag QR and the standard sonder bolt up clamp it came with.
I can also try a shim and a 27.2 race face post which is next.
Any issues from users? What post you got and what clamp? How many grunts worth do you need to tighten it?
Thanks folks
Dave
Ive tried some fenwicks grip compound too. For both cases.
I have a new ritchey wcs al post, measures 31.4 in the new BR frame which measures 31.8
Ive tried a chromag QR and the standard sonder bolt up clamp it came with.
I can also try a shim and a 27.2 race face post which is next.
Any issues from users? What post you got and what clamp? How many grunts worth do you need to tighten it?
Thanks folks
Dave
Ive tried some fenwicks grip compound too. For both cases.
Re: Broken road riders, assistance please
Is the post marked as 31.4 or did you measure it as that?
If it's a 31.4 post then it the wrong size for the frame.
The almost endless sizes of posts available is one of the more annoying things of bike standards. I think my Identiti frame has a size that only Identiti make
If it's a 31.4 post then it the wrong size for the frame.
The almost endless sizes of posts available is one of the more annoying things of bike standards. I think my Identiti frame has a size that only Identiti make
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Re: Broken road riders, assistance please
Tried the old cut-up-coke-can shim trick Dave?
Re: Broken road riders, assistance please
Measured, marked 31.6.
Coke can, not yet. Id hoped not to resort to that but it remains an option of course. Been a very long time since i had to so.
Coke can, not yet. Id hoped not to resort to that but it remains an option of course. Been a very long time since i had to so.
Re: Broken road riders, assistance please
I had this. Bought a hope seatclamp. Also coated the seatpost in dirt.
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Re: Broken road riders, assistance please
Ill try some dirt then. I'd avoided hope seatclamps as i thought they had aluminium bolts.
- macinblack
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Re: Broken road riders, assistance please
Only thing that has worked for me is a FSA carbon seat post and carbon paste.
Re: Broken road riders, assistance please
Cheers to you as well then.
Ive a few more tricks to try before i splash on a carbon post. Ill post up if i fix it.
Ive a few more tricks to try before i splash on a carbon post. Ill post up if i fix it.
Re: Broken road riders, assistance please
Incidentally, a use shim and a 27.2 post doesnt work either. Didnt think it would but I he parts were just there.
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Re: Broken road riders, assistance please
I had that. I installed a reverb. Done. But, cannondale do a seatpost clamp with a post clamp and a frame clamp. Will upload.
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Re: Broken road riders, assistance please
I have a dropper that i used when i first got the frame a few weeks ago. That slipped too, just not as much. But i took it out to fit a standard post so my seat pack would fit (before the V)
Keen to solve it now
Keen to solve it now
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Re: Broken road riders, assistance please
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- Cheeky Monkey
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Re: Broken road riders, assistance please
I'm sure there's probably a good reason but, if it was new etc etc, have you considered contacting Alpkit about replacement or possible remedy?
I had a vaguely similar issue with a Titus Fireline. Even clamped up to hold the post at height you could "waggle" it and feel a knocking. Took it back and got a straight swap for a second frame that didn't show the same symptoms and has been fine since.
I had a vaguely similar issue with a Titus Fireline. Even clamped up to hold the post at height you could "waggle" it and feel a knocking. Took it back and got a straight swap for a second frame that didn't show the same symptoms and has been fine since.
Re: Broken road riders, assistance please
Yes, I have contacted Alpkit to ask what the spec/tol is for the seat tube. Everything is new new and less than 2 months old.
Re: Broken road riders, assistance please
I use a 27.2 seatpost and aluminium cane creek shim (31.6 - 27.2) on my BR. No issues and the thinner post adds to comfort.
On shims, I tried the USE plastic ones in the past found they allowed too much flex between post and seattube.
On shims, I tried the USE plastic ones in the past found they allowed too much flex between post and seattube.
Re: Broken road riders, assistance please
My USE one is aluminium, with a Aluminium raceface seatpost, thats the worst slip of all.
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Re: Broken road riders, assistance please
Thomson posts - (micro) ribbed for your pleasure
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Re: Broken road riders, assistance please
If you are accurately measuring the post as 31.4 and the frame is for 31.6 then the post you've got is clearly wrong. In which case Alpkit will take it back. Load of cheap 31.6 posts around without having to resort to pastes, fancy seatclamps or carbon posts.