I have never had a problem using an allen wrench. No pedals falling off, etc. Just make sure your spindle threads are greased and snug it down good and tight. It doesn't require Herculean force to keep them tight. As for the torque wrench, I don't have one, but I'm looking for a good price on one. It would be nice to have one around so I don't get too ham-fisted when tightning bolts.