2012
Enfield Thunderbird TwinSpark - Specifications & Review

Article Complete Info
| Articleid | 652113 |
|---|---|
| Category | Classic |
| Make | Enfield |
| Model | Thunderbird TwinSpark |
| Year | 2012 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Single downtube, using engine as stressed member |
|---|---|
| Frontbrakes | Single disc |
| Frontbrakesdiameter | 280 mm (11.0 inches) |
| Frontsuspension | Telescopic With Hydraulic Damping. |
| Fronttyre | 3.25-19 |
| Frontwheeltravel | 130 mm (5.1 inches) |
| Rearbrakes | Expanding brake (drum brake) |
| Rearbrakesdiameter | 153 mm (6.0 inches) |
| Rearsuspension | Swing arm With Gas Shock Absorbers. |
| Reartyre | 3.50-19 |
| Rearwheeltravel | 80 mm (3.1 inches) |
| Seat | Dual seat |
Engine & Transmission
| Borexstroke | 70.0 x 90.0 mm (2.8 x 3.5 inches) |
|---|---|
| Clutch | Wet mulitiplate |
| Compression | 7.3:1 |
| Coolingsystem | Air |
| Displacement | 346.00 ccm (21.11 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Enginetype | Roya Enfield Unit Construction Engine, twin sparks |
| Fuelsystem | Carburettor. UCAL 29mm, Constant Vacuum Carburettor |
| Gearbox | 5-speed |
| Ignition | Transistorised Coil Ignition |
| Lubricationsystem | Wet sump |
| Power | 19.80 HP (14.5 kW)) @ 5600 RPM |
| Topspeed | 120.0 km/h (74.6 mph) |
| Torque | 28.00 Nm (2.9 kgf-m or 20.7 ft.lbs) @ 4000 RPM |
| Transmissiontypefinaldrive | Chain |
Other Specifications
| Coloroptions | Black, Red, Silver |
|---|---|
| Comments | Royal Enfield bikes are made in India. |
| Electrical | 12V |
| Light | 35W/35W Halogen headlamp |
| Starter | Electric & kick |
Physical Measures & Capacities
| Dryweight | 163.0 kg (359.4 pounds) |
|---|---|
| Fuelcapacity | 13.50 litres (3.57 gallons) |
| Groundclearance | 135 mm (5.3 inches) |
| Overallheight | 1,080 mm (42.5 inches) |
| Overalllength | 2,150 mm (84.6 inches) |
| Overallwidth | 820 mm (32.3 inches) |
| Powerweightratio | 0.1215 HP/kg |
| Weightincloilgasetc | 187.0 kg (412.3 pounds) |
About Enfield
Country of Origin:
United Kingdom (heritage), India (modern Royal Enfield)
Founder:
Enfield Cycle Company; later stewardship by Eicher Motors (India)
Best Known For:
Classic singles and twins; Bullet/Classic lineage and modern 650 twins
Company History
The Enfield story spans two nations and more than a century. In England, the Enfield Cycle Company built sturdy singles and twins that served commuters, police, and the military, with the Bullet becoming a postwar icon for its thump and simplicity. When Britain’s motorcycle industry contracted, licensed production in India kept the Bullet alive at Royal Enfield’s Madras (now Chennai) works. There, the motorcycle transcended transport to become cultural shorthand—film star, touring mule, and village legend. Under Eicher Motors’ stewardship in the 2000s–2010s, Royal Enfield modernized while honoring silhouette and sound. New UCE engines, then refined J-series singles, improved brakes and electrics, and finally the globally acclaimed 650 twin platform proved that affordability and charm could travel. The brand expanded into accessible adventure (Himalayan), neo-retro roadsters (Interceptor/Continental GT 650), and a more robust service culture that turned nostalgia into a dependable ownership proposition. Historically, Enfield’s significance is unique: it preserved mid-century motorcycling’s cadence—long-stroke beats, unhurried torque—into the present, then exported it back to the world with modern reliability. For millions of riders, the first long road out of town arrived on a Bullet; for a new generation, it arrives on a 650 twin that still feels human-scaled. Across continents, Enfield stands for the idea that motorcycles can be simple, soulful, and attainable—and that lineage, if cared for, can carry a brand farther than any spec sheet.
