Originally Posted by
CACycling
Actually, the weight is supported by the axle in the dropouts. The skewer simply holds the dropout against the lock nut on the axle. I have seem racks that mount to the seat stays
http://www.niagaracycle.com/product_...oducts_id=1547
which, combined with the seat clamp could be a good solution if you did something to protect the carbon where the clamp is at.
Many CF bikes specifically state that nothing is to be clamped to the stays in which case the OP's device plus a rack whose support legs are clamped by the rear quick release, or a strictly seatpost mounted rack, are the only solutions which meet the frame makers listed restrictions.
The Civia Hyland normally comes with a carbon fork without front rack mounting bosses and a warning to not clamp to the front fork. Civia does offer a steel fork with rack mounts for those who want to mount a front rack.