The Royal Enfield Thunderbird 350X and the Royal Enfield Thunderbird 500X have been spied testing in the country.
Both the Thunderbird 350X and the 500X have a more modern design appeal, thanks to the inclusion of black alloy wheels; sportier handlebars; round mirrors, and a single-piece seat. The motorcycles also get split grab handles, and are devoid of the cushioned pillion backrest. The powertrain, sideboxes, fenders, headlight casing and the instrument pods get black finish on both motorcycles. The fuel tank gets funky colours like White, Red, Yellow, and Blue. The rim stickers also match the colour of the tank.
Mechanically the bikes are the same as the standard Thunderbird models. The Royal Thunderbird 350 makes 19.8 bhp of power; and 28 Nm of torque from its 346 cc single cylinder mill. The Royal Enfield Thunderbird sports a larger 499cc mill with fuel injection. The engine is good for 27.2 bhp at 5,250 rpm; and 41.3 Nm at 4,000 rpm. The two cruisers share a 5-speed transmission.
Cycle parts include telescopic front forks, and twin rear gas-charged shock absorbers. For braking, the motorcycle comes with 280 mm front and 240 mm rear disc. Notable features of the Thunderbird are its 20-litre fuel tank; twin pod instrument cluster with average speed recorder for twin trip meters; digital fuel gauge, and projector headlamp with LED DRL and LED tail light.