The Royal Enfield Thunderbird X 350 is a discontinued 346 cc air-cooled motorcycle with a 5-speed gearbox, the first Royal Enfield sold with tubeless tyres and alloy wheels. Bikez.com (2018 model year) lists 19.8 HP @ 5600 rpm maximum power, 28 Nm @ 4000 rpm maximum torque, a 280 mm front / 240 mm rear disc brake, a 90/90-19 front and 120/80-18 rear tyre, a 20 litre fuel tank and a 195 kg weight.
The Royal Enfield Thunderbird X 350 is a motorcycle from Royal Enfield. It has been discontinued. Mechiee still services it at your doorstep. With a 346 cc engine it sits in the 250–450 cc class.
Power comes from a 346 cc single-cylinder air-cooled carburetted engine that makes 19.8 HP at 5,600 rpm and 28.0 Nm of torque at 4,000 rpm. Peak torque arrives low in the rev range, at 4,000 rpm, which makes it relaxed to ride in traffic. Its stroke is longer than its bore (70.0 x 90.0 mm), a long-stroke layout that generally favours low-down pulling power. Divide power by kerb weight and it has about 103 PS per tonne; by that measure, there is enough go for confident city riding and relaxed highway cruising. The claimed top speed is 120 km/h. It has both electric and kick start.
It has a 5-speed manual gearbox, and a chain carries drive to the rear wheel. It uses a wet multi-plate clutch.
Its frame is single downtube, using engine as stressed member. At the front, the suspension is telescopic with hydraulic damping, 41 mm, 130mm travel forks. At the rear, it is swing arm with gas shock absorbers, 80mm travel. Braking is by a 280 mm disc at the front and a 240 mm disc at the rear. It rides on 19-inch front and 18-inch rear cast, 9-spoke wheels — 90/90-19 at the front and 120/80-18 at the rear.
The seat is 775 mm off the ground, which is low and makes it easy to put your feet down. It weighs 195 kg ready to ride, which is on the heavy side, so moving it by hand takes some effort. Ground clearance is 135 mm — low, so take speed breakers and steep ramps slowly. It is 2,040 mm long, with 1,350 mm between the axles. It carries 20 L of fuel.
Equipment includes a halogen headlamp.
For the Royal Enfield Thunderbird X 350, Mechiee offers a fixed ₹2,199 doorstep service.
Its low seat also makes it approachable for shorter and newer riders.
Its chain drive needs regular cleaning, lubrication and slack adjustment. Being carburetted, it benefits from an occasional carburettor clean, especially if it has stood unused.
These figures come from a single publication (Bikez.com) and have not been confirmed against the manufacturer. The model is discontinued. Exact values can differ slightly by variant and model year.
Sources: Bikez.com
Specifications last checked:
Mechiee doorstep service
₹2,199
Mechiee's fixed doorstep service price for this model.
Follow the schedule in the owner's manual for your exact variant and year. A regular service is the cheapest way to catch small problems before they become expensive ones.
Engine oil is the single most important consumable to keep fresh. Top up between services if the level drops, and change it on schedule.
With Single disc, two piston caliper, ventilated, 280 mm and Single disc, single piston caliper, ventilated, 240 mm brakes, check pad or shoe wear, lever and pedal free play, and braking feel at every service.
A clean, correctly tensioned and lubricated chain lasts longer and wastes less power. Check slack regularly, especially after riding in rain or dust.
A clogged air filter or worn spark plug shows up as hard starting, weak throttle response and poorer fuel economy. Both are checked at a regular service and replaced when worn.
Brake fluid absorbs moisture over time, which lowers its boiling point. Have its level and condition checked and change it on the interval in the owner's manual.
This bike runs 90/90-19 / 120/80-18 tyres. Check pressure, tread depth and sidewalls, and replace tyres that are worn or cracked.
Weak starting, dim lights or a flickering console are early signs the battery or charging system needs a look.
Book a verified Mechiee mechanic, track them live, and keep a permanent record of every job on your bike.
Doorstep service₹2,199
Mechiee mechanics service the Royal Enfield Thunderbird X 350 at your doorstep across 119 areas of Pune, with bigger jobs handled at a Mechiee Service Center. Pick your area to see local details.
Manufacturer figures for each bike. A dash means the value is not published in our sources.
| Specification | Royal Enfield Thunderbird X 350 | Royal Enfield Thunderbird 350 | Royal Enfield Thunderbird 500 | Royal Enfield Thunderbird X 500 |
|---|---|---|---|---|
| Engine | 346 cc | 346 cc | 499 cc | 499 cc |
| Max power | 19.8 HP (14.5 kW) @ 5600 rpm | 18.0 bhp @ 5501 rpm | 27.57 PS @ 5250 rpm | 27.2 HP (19.9 kW) @ 5250 rpm |
| Max torque | 28.0 Nm @ 4000 rpm | 27.46@3500 Nm@rpm | 41.3 Nm @ 4000 rpm | 41.3 Nm @ 4000 rpm |
| Claimed mileage | — | 34 kmpl (ARAI-certified, per BikeDekho) | 30 Kmpl (ARAI-certified, per BikeDekho) | — |
| Gears | 5-speed | 5-speed | 5-speed | 5-speed |
| Kerb weight | 195 kg | 175 kg | 199 kg | 197 kg |
| Fuel tank | 20 Litres | 14.45 L | 20 L | 20 Litres |
| Front brake | Single disc, two piston caliper, ventilated, 280 mm | — | Disc, 280 mm | Single disc, ventilated, 2-piston calipers, 280 mm |
| Rear brake | Single disc, single piston caliper, ventilated, 240 mm | — | Disc, 240 mm | Single disc, single-piston, 240 mm |
What the technical terms on this page mean.
The Royal Enfield Thunderbird X 350 has a 346 cc engine, described as single cylinder, four-stroke, twin spark.
The Royal Enfield Thunderbird X 350 is rated at 19.8 HP (14.5 kW) @ 5600 rpm maximum power and 28.0 Nm @ 4000 rpm maximum torque.
The Royal Enfield Thunderbird X 350 has Single disc, two piston caliper, ventilated, 280 mm at the front and Single disc, single piston caliper, ventilated, 240 mm at the rear.
The Royal Enfield Thunderbird X 350 runs 90/90-19 at the front and 120/80-18 at the rear on cast, 9-spoke wheels.
Follow the service schedule in the owner's manual for your exact variant and year. Between services, keep an eye on engine oil, chain, tyres and battery. With Single disc, two piston caliper, ventilated, 280 mm and Single disc, single piston caliper, ventilated, 240 mm brakes, brake wear and adjustment are worth checking at every visit.
No. The Royal Enfield Thunderbird X 350 has been discontinued. Mechiee still lists doorstep servicing for it.
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