Easiest and cheapest way is to put a rubber coated hook up in the ceiling and heng them from there. Doesn't hurt the wheels or bike at all. It also work at the top of a wall too!

I like something like this:
http://www.lowes.com/lowes/lkn?action=productDetail&productId=267936-468...
Works great for roadies. If you have very wide handlebars, they may stick out a bit.

Big rubber hook works well but I not have mine inside and toasty sitting on the trainer.

In My experience, the rubber coated hooks do hurt the wheels but the only bike I did this to was an older mtb. I preffer the two arms coming from the wall and holding the frame. Works like a charm.

Daniel

If you go the screw hook route, meaning you will be anchoring to the ceiling, you may want to consider a rope and pulley system ( https://www.motorpartscentral.com/ProductModelDetail.cfm?ProductModelId=... ).

I usually take the more 'cost effective' (cheap) route and piece it together using small pulleys and a thing of rope from lowes. Its super easy to lower and raise, and if you play with it right you can pull the bike virtually flat against the ceiling.

[quote=dscf23]In My experience, the rubber coated hooks do hurt the wheels but the only bike I did this to was an older mtb. I preffer the two arms coming from the wall and holding the frame. Works like a charm.

Daniel[/quote]
I have my bike hanging from rubber coated hooks, and I was actually worried about this. Did it stretch out the spokes?