This Disc is for the Front of the Early Model Odes 800 and has a O.D. of just under 8"
This also fits the HiSun early models with 12" Rims/Wheels, just looks different in the center by the hub and is a stronger design that the HiSun.
This TPS is for the 2019ish and newer models that have the Engine Pointing Backwards.
Told by the all Black color (no grey) and the inner sensor wheel Turns Clockwise.