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I've got a 2007 p1 frame which uses a 30.9 seat post.
I've tried a 31.6 mm clamp and it doesn't fit on the frame, while a 34.9 clamp seems too loose.
Apart from cutting up a coke can and making a DIY shim, is there anyway I can get the right sized clamp?
My calipers say 33.6mm, so the closer to this the better.
Thanks
My Pipedream Skookum uses a 33mm clamp.
I run a KCNC one from Clee cycles.
Stu @ Pipedream has a stock of 33mm clamps in both qr and bolt up.
That said Ragley make/made a specific shim to take a 34.9mm clamp down to 33mm.
Thanks, a 33mm may be a touch on the small side.
I've found a coke can now, and am gonna have a go at making a shim. :s