I automatically thought of Mr Tuffy strips but they aren't rim strips because they go btwn the tire and the tube. I swear by the mtn biking because you know when you get a new bike and you are all excited to ride it? Yeah...well that was me, 5 miles into the desert with TWO flat tires from goat heads.

For the road I'm not sure. Not sure if they make them that small ?? I would be interested in finding out...