I'm not sure if this question fits here, but I've had trouble finding a good simple physics forum, so I signed up here :) I'm trying to think if the below wheel (image below) could allow for my push mower to have a zero or near zero turn radius. The edges of the wheel contour up (from the ground upwards), which should bend the blades of grass over and allow the wheel to glide over them (theoretically). The contact point of the wheel is in the middle due to the contoured edges. I would like to use this wheel instead of a swivel caster as it would still allow the mower to track straight much better than using a swivel caster. Also it would bolt right on with no extensive mods that the swivel caster would require. Am I thinking right? If there is any risk of tearing the grass (scalping) I will abandon this idea. These are called anti-scalp wheels however. I appreciate your feedback.