carbon seat post/ally frame
Comments
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Just slap a load of carbon paste in there - available from usual suspects (Chain Reaction etc etc) and torque the clamp up to manufacturer's recommendations.0
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To save a bit of cash - Ritchey do small sachets of the stuff.
Don't forget to use a carbon-post specific clamp. Something like:
http://www.jejamescycles.co.uk/miche-carbon-x-item157046.html
or
http://www.chainreactioncycles.com/Models.aspx?ModelID=28816&gclid=CKrqkqXj26wCFQINfAodSjP1qw0 -
g00se wrote:Don't forget to use a carbon-post specific clamp. Something like:
http://www.jejamescycles.co.uk/miche-carbon-x-item157046.html
or
http://www.chainreactioncycles.com/Models.aspx?ModelID=28816&gclid=CKrqkqXj26wCFQINfAodSjP1qw
I don't understand why you would need to use a 'carbon specific' clamp. The clamp itself tightens on the seat tube, not the seat post....0 -
Pseudonym wrote:
I don't understand why you would need to use a 'carbon specific' clamp. The clamp itself tightens on the seat tube, not the seat post....
If the open section of the clamp lines up with the cut slot of the frame, the 'lip' of the clamp could - apparently - push the lip on the frame onto the post - point loading it. You could use a regular clamp but spin it about a bit - but the carbon-specific ones are offset so they still look symmetrical when installed.
It's the same with stems on carbon steerers. Carbon specific stems should not have cut-aways where it clamps around the steerer - it should be solid. Some have shims to achieve this but when installing , the slot down the shim should not line up with the gap down the back of the stem, as it could push the edge of the shim into the carbon. See http://www.bikeradar.com/gallery/article/fsa-os-120-1-14in-stem-review-23035?img=2&pn=fsa-os-120-stem&mlc=gear%2Fcomponents%2Fstem%2Farticle0 -
g00se wrote:Pseudonym wrote:
I don't understand why you would need to use a 'carbon specific' clamp. The clamp itself tightens on the seat tube, not the seat post....
If the open section of the clamp lines up with the cut slot of the frame, the 'lip' of the clamp could - apparently - push the lip on the frame onto the post - point loading it. You could use a regular clamp but spin it about a bit - but the carbon-specific ones are offset so they still look symmetrical when installed.
It's the same with stems on carbon steerers. Carbon specific stems should not have cut-aways where it clamps around the steerer - it should be solid. Some have shims to achieve this but when installing , the slot down the shim should not line up with the gap down the back of the stem, as it could push the edge of the shim into the carbon. See http://www.bikeradar.com/gallery/article/fsa-os-120-1-14in-stem-review-23035?img=2&pn=fsa-os-120-stem&mlc=gear%2Fcomponents%2Fstem%2Farticle
Is this why some manufacturers have the clamp opposite from the norm in some publicity piccies? (I think that Cervelo did this recently with their latest one - amongst others that I can't remember at this particular moment in time...)0 -
That sounds feasible - there's no reason for it to be at the back other than established practice from when the bolt holes were integral to the old steel frame tubes. Unless it's because they have the slot in the seat tube at the front rather than at the back (Kona's idea - so the slot doesn't catch muck thrown up from the road).0
