Not mentioned is one cause of a pad hanging up when checking out the brake function after reinstalling a wheel (or anytime the bike is stationary). If the pad was not completely contacting the rim a lip can form by the rest of the pad wearing down. This lip, overlapping the edge of the rim, can catch on the rim and act as a hook, trapping the pad against the rim. Once relative motion between the rim and pad is had (as in riding the bike) continues after the brake was released (like just slowing down a bit, not completely stopping) the pad will release as usual. If the wheel stops moving the pad will hang up against the rim. Filing/sanding off the lip (or installing in worn pads) solves the problem.


I will add my opinion to the centering V brakes thing. Two pivots, two springs means grit/grime/adjustment shift can happen twice as easily. Plus the trade off for the greater mechanical advantage that V brakes offer is the loss of rim/pad clearance. So matching the rim's position exactly is a higher requirement with wheel reinstalls. Andy.