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-   -   Advice on clamping a carbon bike on a workstand (https://www.bikeforums.net/road-cycling/438356-advice-clamping-carbon-bike-workstand.html)

round-the-bend 07-07-08 04:17 PM

Advice on clamping a carbon bike on a workstand
 
Is it OK to support a carbon frame by the crossbar (not a compact frame) on a Minoura 5000 stand? The clamp does not go quite small enough for the seat post (also carbon).
I wouldn't do anything strenuous like releasing tight pedals or BB whilst on the stand.

Doggus 07-07-08 04:25 PM

I clamp mine on the top tube all the time ($$Trek 6.5$$). I wiggle the bike till it remains firm in the clamp but NO MORE! I do not do anything that will cause stress on the tube other than supporting the bike. All torqing of bolts etc... are done while bike is on the floor.

johnny99 07-07-08 04:27 PM

Do not clamp a carbon frame or carbon seatpost.
You shouldn't clamp a lightweight metal frame, either.

mrt10x 07-07-08 04:30 PM

buy a cheap seatpost to use when working on the bike. or buy a stand that clamps on the BB, never clamp a carbon seatpost, seat tube, top tube.

baxtefer 07-07-08 04:35 PM


Originally Posted by mrt10x (Post 7016596)
buy a cheap seatpost to use when working on the bike. or buy a stand that clamps on the BB, never clamp a carbon seatpost, seat tube, top tube.

never clamp a frame tube, period. regardless of material.

sstorkel 07-07-08 05:44 PM


Originally Posted by mrt10x (Post 7016596)
never clamp a carbon seatpost, seat tube, top tube.

Damn! I wish you'd told me this ten years ago...

mrrabbit 07-07-08 05:54 PM

Damn! I wish you'd told me this each and every year since 1984...

George 07-07-08 06:00 PM

I've been clamping mine on the carbon seat post for quite some time now, with no problems.

Bnjmn 07-07-08 06:06 PM

+1 for clamping the carbon seat post. If your clamp is long enough (like 6") with a thick rubber coating, you should have no problem. My clamp covers a large amount of my seatpost, which helps spread the stress.

DataJunkie 07-07-08 06:10 PM

+2 for the seat post. I make sure it has the minimal force needed to hold the seat post in place.


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