I'm trying to figure out the viability of a project to suspend bicycles from the garage ceiling. What I don't know, however, is how much to worry about the bearing capacity of wood screws to hold a pulley, fairlead, or other device to guide the rope down the wall. An example is something like http://www.ronstan.com/marine/product.asp?ProdNo=RF188 or http://www.landfallnavigation.com/har472.html, which I assume I can mount with a hanger bolt of some sort.
Anyway -- let's each bike maxes out at about 30 pounds, which will be a little higher while hoisting. What's the best way to attach something like the pulleys to a stud or rafter? My worry is that this is the worst kind of loading scenario -- basically perpendicular to the stud. I can't find any info online about what I can expect from standard screws in framing lumber, though. Would it be necessary to knock out a bit of drywall and attach this kind of stuff to a smallish (maybe 4" wide) panel of plywood? That way I could spread the load across more fasteners in the framing.
If this is a better fit for another SE site, let me know. Engineering seems a lot more exotic than this kind of question...