If you look at the second picture on the page linked by Mitch, it might be a little more clear. Basically, the top arm (in the picture) has a little cam that engages the cable as you begin to squeeze the handles. Then, as you squeeze more, the two arms of the tool move away from one another, thus "pulling" the cable. The bottom arm (with the slot in it) pushes against the brake (or derailer), while the top arm pulls the cable. I use the Hozan version, which doesn't have a thumb lock feature, so I just squeeze with one hand and tighten the hex screw with the other.
Hope this isn't confusing things more... -Jay B. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
