1. Tool free height adjustment of the tail wheel.
2. Enough angle on the tail wheel so it doesn't wobble at higher speeds.
3. replaceable skid wear plates and optional front wheels
4. A PTO coupler with a locking collar, so you can hold it in the open position as you slide it onto the PTO shaft (I had an older Rhino that had this type)
5. Chain or fabric debris skirts.
6. Generous top link pivot for uneven terrain.
7. Smooth underside to facilitate cleaning and minimize debris buildup and corrosion.
8. accessibility to all grease zerks ( I have a Landpride, the zerk on the PTO shaft near the gearbox end is a PITA to get to)
9. If a shear pin style, make a carrier to keep spare shear pins.