| MODEL | ROYAL ENFIELD THUNDERBIRD 350X 2018 |
| Year | 2018 |
| Engine Type | Single cylinder, air cooled, four stroke, OHV (Unit Construction Engine) |
| Displacement / Capacity | 346 cc |
| Bore X Stroke | 70 x 90 mm |
| Compression Ratio | — |
| Cooling System | Air cooled |
| Max Power | 14.8 kW / 19.8 hp @ 5250 rpm |
| Max Torque | 28 Nm / 20.7 lb-ft @ 4000 rpm |
| Ignition | Digital twin-spark ignition (TCI) |
| Induction | — |
| Start System | Electric and kick start |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed, constant mesh |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | Disc |
| Rear Brakes | Disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | Tubeless, alloy wheel |
| Rear Tyre | Tubeless, alloy wheel |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
A mostly cosmetic reworking of the Thunderbird 350 aimed at younger city riders. It brought alloy wheels with tubeless tyres (a first for the brand), a flat handlebar, new seats and grab rail, a shortened rear mudguard, daytime running lights and blacked-out parts under bright tank colours. It was sold in Roving Red and Whimsical White.
