Rear Wheel Assembly with 3-Spoke Rim for the Razor Pocket Mod (Versions 1-12) and Sport Mod Merits Roadster 4 (S741A) The Baja BE500 uses this

The Baja BE500 uses this on both the front and the rear rims

Armrest cover has metal insert and fits over the armrest frame that is attached to upright tube which has a reinforcement block and connects to the seat platform used for Pride Mobility models with molded plastic seats

but the little white plastic connector is missing from the wires

Monster Scooter Parts offers a Dynamic integrated controller diagnostic service for the Dynamic controller with integrated joystick models

and it is made by NCY

Rear Wheel Assembly with 3-Spoke Rim for the Razor Pocket Mod (Versions 1-12) and Sport Mod Merits Roadster 4 (S741A) The Baja BE500 uses thisOEM complete rear wheel assembly for the Razor Sport Mod and Pocket Mod versions with three spoke wheel. Includes 12 1 2" x 2 1 4" tire, tube, and rim and wheel bearings. Razor: W15130640048