saddlebag on carbon seatpost

[pwa]

When I was looking for a bag, for my carbon SP I was met with a sharp intake of breath with any metal clamping, and so I brought an alpkit that uses velcro, I have been told this is fine, the proof is in the pudding of course, if a prev.poster broke an alloy post, maybe it is not the material that is the key issue.

I've broken alloy posts (plural) and suspect an SQR clamp/bag played a part in one. But I'd say it would be wise to be cautious about clamping to any thin walled tube, of any material. And it would be daft to do it in a way that scratches the post, because that weakens it.

[geomannie]

FWIW I used a small Carradice saddle bag on a carbon seatpost for about a year. One day I hopped on and crash, the saddle was no longer there, just jaggy carbon fibre pointing up. Luckily I hadn't put may full weight down on the remains of the seat post. I hate to think if I had.

I would never now put a saddle bag on a carbon post.

[mjr]

I would never now put a saddle bag on a carbon post.

Let's see if the alpkit koalas (I think) damage the pros' bikes: https://www.cyclingweekly.com/news/late ... ium-397280

[RickH]

I would never now put a saddle bag on a carbon post.

Let's see if the alpkit koalas (I think) damage the pros' bikes: https://www.cyclingweekly.com/news/late ... ium-397280

Pretty sure it isn't Alpkit gear but I've not worked out what it is yet.

[le.voyageur]

assuming the carbon post is heavy enough (i.e. not too thin walled) would a thin hard plastic sheeth between the post and clamp which stops the clamp creating a stressor and spreads the clamping force not be a solution here?

[mjr]

I would never now put a saddle bag on a carbon post.

Let's see if the alpkit koalas (I think) damage the pros' bikes: https://www.cyclingweekly.com/news/late ... ium-397280

Pretty sure it isn't Alpkit gear but I've not worked out what it is yet.

Apidura. I got the wrong maker beginning with a.

[Brucey]

so saddlebag and bagman is best the??

Bagman 2 or a rear rack would be best if the bag is heavy and/or the seat pin is thought suspect

cheers