Here's my dax bike, towing the kid trailer. The softee brake pads are great! I wish I had found these years ago! I'm upgrading all my bikes (even road) to them in the future. They are 1/2" shorter than standard v-brake pads and just a little softer, with thick blocks. They should fit on most caliper brakes, and if they hit your fork on a road bike, you can saw them short on one end or put a nut on the brake stud.
Long version http://www.amazon.com/Diamondback-So...owViewpoints=1