Drive Medical uses this adjustment knob on several of their 3-wheel rollator models including the Winnie Lite Supreme/Go Lite Aluminum Rollator (199)
This 11" 2
Note that this rear mount Smart Pie hub motor is just that
If you have a Jetson® LX10 folding electric bike
This motor has mounting holes on the front faceplate but does not include a mounting bracket
8" Front Caster Wheel for the Drive Steel Transport Chair, Rebel, Silver Sport 1, Silver Sport 2, and Silver Sport Full Recline Wheelchairs (STDS3J2432) Coleman Powersports AT200-B Drive Medical uses this adjustmentHere is the OEM replacement front wheelchair chair caster wheel for the Drive Steel Transport, Blue Streak, Cruiser III, Silver Sport 1, Silver Sport 2, and Silver Sport Full wheelchairs. This caster wheel assembly is only compatible with the Drive Cruiser III with 3J serial numbers. Although this item is sold individually, we recommend that you replace both wheelchair caster wheels at the same time. Drive Medical: STDS3J2432