So I was at Sears looking at torque wrenches and they had 2 models, one that went from 25-250 in/lbs and one that went from 10-75 ft/lbs. When I was there, I thought they were both in ft/lbs, so I got the 10-75 ft/lbs model. Now I realize that the other one is actually in in/lbs so I need that one (I need a lower range), but it only goes up to about 20 ft/lbs of torque. This is my first torque wrench, so: How often do you use more than 20 ft/lbs of torque when working on your bike? Do you ever, or is 20 more than enough? Will I need both the larger AND the smaller model, or just the smaller one for regular bike work? Thanks!