| MODEL | UM CHILL 50 2021 |
| Year | 2021 |
| Engine Type | Single cylinder, four-stroke |
| Displacement / Capacity | 49.6 cc / 3.03 cu in |
| Bore X Stroke | 40 x 39.2 mm / 1.6 x 1.5 in |
| Compression Ratio | 9.2:1 |
| Cooling System | Air |
| Max Power | 2.8 kW / 3.8 hp @ 7500 rpm |
| Max Torque | 2.8 Nm / 2.1 ft-lb @ 6000 rpm |
| Ignition | ECU |
| Induction | Carburettor. Mikuni EFI |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | Automatic |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic fork |
| Rear Suspension | Double Shock Absorber |
| Front Brakes | Single disc |
| Rear Brakes | Expanding brake (drum brake) |
| DIMENSION SPECS | |
| Overall Length | 1900 mm / 74.8 in |
| Overall Width | 650 mm / 25.6 in |
| Overall Height | — |
| Seat Height | 725 mm / 28.5 in |
| Wheelbase | 1330 mm / 52.4 in |
| Ground Clearance | — |
| Dry Weight | 91 kg / 200.6 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 110/70-12 |
| Rear Tyre | 120/70-12 |
| FUEL SYSTEM | |
| Fuel Capacity | 5 Litres / 1.32 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2021 UM Chill 50 is listed as a scooter model with a 49.6 cc single cylinder, four-stroke. The listing gives a claimed output of 2.8 kW / 3.8 hp, automatic gearbox. Weight is listed as 91 kg.
