Never heard of that curbing tactic, but man that sounds dumb, dangerous and ******bag. I've never encountered that in NY, and I've done enough racing and street rides with racers. Between the Nyack Ride and racing, 500+ competitive rides with racers, and that just doesn't happen here. They'd probably beat you to death with your own bicycle if you pulled that ****. I wouldn't do it just because I hate riding in the gutter. That's really dopey.