Staffo these things are very stable. Just like the propoganda on the website you can do just about anything when the bike is in the air. It's a rare occasion that I clamp my Speedmaster down. I weigh 250# and can easily get up on the bike and rock it while it's on the stand (I may clamp it down for this if I remember). There are some good videos on the web of the lift in action, just do a search and I'm sure you will be as impressed as I was or should I say am. as far as the drill goes I use a Dewalt 3/8" drive cordless, you can even use a ratchet or wrench if you want but it's just slower. IMHO this unit is in a whole different league than the usual hydraulic lift. Mine is the original Red model but now there is the Big Blue model also. One last thing, with the proper attachments you can lift virtually any bike. I made the mistake of buying a lot of these attachments when I purchased the unit so now everyone I know casually shows up wanting to use it to work on thier bike.
