Because of off-tracking, you risk crowding someone, such as a cyclist, who’s travelling on your right side. Running your rear wheels over curbs and sidewalks can damage your tires and seriously injure pedestrians and cyclists. Unfortunately, at the point where the tractor has made the turn but the trailer hasn’t, the right rear-view mirror is turned so you can’t view road users with it. And if you try to swing wide to avoid overrunning the curb, other drivers may be tempted to squeeze by you on your right side, which can lead to a collision.