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Are seatpost shims bad?(4 posts)

Are seatpost shims bad?config
Sep 11, 2003 9:32 AM
Just found out that the carbon seatpost I just bought is the wrong size. I purchased a 26.8 post and actually need a 27.2mm. For now, I am using a shim to make it fit better. The fit is kind of tight but I guess it works. My question is, should I just get the proper fitting seatpost or is/will the shim work fine?
Seatpost shims can be good!JimP
Sep 11, 2003 11:26 AM
Shims for carbon seatposts can spread the load evenly around the post. The slot in the shim should be opposite the clamp bolt.

No probs in 3+ years, and I weigh 230Silverback
Sep 12, 2003 8:02 AM
When I got a Thudbuster post for my mountain bike, I swapped the cheap Supergo suspension post to my beater/commuter just to see how much difference it made. It's a 25.4 shimmed to 27.2. If you didn't look, you'd never know it was there.
re: Are seatpost shims bad?Giant_Tom
Sep 13, 2003 12:36 AM
As far as I know all Giant NRS mtn bikes like mine come with a shim. I've had no issues with the post at all and now have an ec70 in there and it holds great.