After reading this, I've realized that my post was not helpful.
So, here it is.
First things first. Attach some screw eyes to your rafters. Don't get the cheap "bent" into a circle eyes, get the one's that are solid. There are two ways to do this. The best way, (if you have exposed rafters) is to drill through the rafter about 1/3 of the way down, and install a nut and washer on the end of the screw eye. That shit ain't going anywhere. If you have sheet rock over the rafters, use the lag type screw eyes. Drill a starter hole 1/2 the diameter of the screw, dip the screw in wood glue, and run it in. The screw should be a minimum of 3 inches long for this method. It's okay to install both screw eyes into the same rafter, but it's much better if you split the load between two.
Right, now you have anchor points.
Buy two "come along's". Get good ones, not the cheap shit. Come along's are far superior to ratchet straps, in that they have nice big handles to pull on while you lift, instead of the stupid little tab thingy.
Now you have to attach the bike to the come along's hook. One inch webbing is good for this, but not just any webbing. You want Tublar Webbing. You can find it online at Amazon, or REI, or anyplace that sells climbing gear. It's not that expensive, and it's strong as fuck. Like, 4000 pounds strong.
Depending on the bike,and what you're trying to do, you can make a cradle loop, or run one webbing sling from either side of the bike to the hook.
Ok, so here's the scary part. You have to tie a knot(s) in the webbing to make this all work. Google "Water Knot". That's the one you want. It's actually one of the easiest knots to tie, and the one that works best with Tublar Webbing.
If you want to get fancy, (and I do...) you can install more screw-eyes, 4 feet to either side of your main anchors. From those, you can run ratchet straps to your bike at 45 degree angles. This will keep the bike from wanting to twist while you break axle nuts.
If you want to get REALLY fancy, buy chain motors instead of come alongs.
Fancier even still, is to wrap the part of the frame you're rigging to, with Teflon tape before installing the strap, (keeps the scuff marks off).
And that, motherfuckers, is how you hang a bike from the ceiling.
JC