How to secure a fully carbon (aero) bike when washing/repairing on a stand? My bike is fully carbon (frame, seatpost, saddle etc...) and I clean it regularly. I have read/heard from multiple sources that you should not clamp carbon materials when using a bike stand. However, without clamping, the bike slides everywhere. In particular when I rest the bike on the bottom set of clamp teeth during a cleaning session. The bike is fully aero and I'm very conscious about clamping it too tightly.

I have seen this post relating to bike stands and carbon frames but it doesn't help me. I'm want to know how people with all-carbon aero bikes secure them when cleaning?

1) Are there any special clamps/stands out there that are made specifically to secure carbon bikes? 

2) Has anyone got any home-made solutions to secure their carbon aero frames/seatposts?
The seatpost is a fairly sturdy carbon tube, as it has to withstand the mass of the rider on one and of it and some significant bending forces.

Also, the seatpost has to be clamped by the frame, so it can take some clamping force. 

For cleaning, you should not have to clamp the seatpost particularly hard, just enough to support the bike. 

I note that Simon Richardson of GCN clamps a Ridley bike on its carbon seatpost in this video.