Right angled seat post collar?

[Xplora]

Looking for a stem collar that is flat on both sides, so a "normal bolt and nut" could be used to tighten it. Sadly, the MacGyver setup for my Trek 2.1 with the rack isn't working at all, can't get any pressure on the seat post at all. Made for a very sad ride home

[Mulger bill]

You can buy seat collars with integral lugs for rack mounts. Not sure why but I'm thinking Abbotsford and Moruya cycles.

[Nobody]

So you are looking for a quick-release collar. They usually have external adjustment so need to be flat on both sides. Can be used with a bolt. I've done it.

Have a look at the hope ones for example.

http://www.hopetech.com/page.aspx?itemID=SPG318

[Xplora]

Ripped the QR from the Fluid MTB and it seemed to do the trick cheers gents!