Along with the 350 Bullet, with which it shared a common chassis, the 500 Twin was the first production motorcycle with swinging arm suspension
496cc. Bore and stroke 64 x 77mm, Lucas 50w dyno-distributor, 6'' front and rear brakes, Albion 4-speed gearbox, top speed 84mph, dynamically balanced nodular iron crankshaft.
1953 - 1955
When released, the 700cc Meteor was Britain's largest capacity parallel twin. It was also avilable with optional sidecar front forks and gearing.
692cc. Bore and stroke 70 x 90mm, One-piece crankshaft, shell bearings, chain driven camshaft, 1 1/16'' Amal needle-type carburettor, seperate aluminium cylinder heads and cast iron barrels for extra cooling and ease of maintenance.
1956 - 1862
Royal Enfield's first 100mph motorcycle, although it was often promoted as being ideal for use with a sidecar.
496cc. Bore and stroke 70 x 90mm. 40bhp @ 5500rpm. Amal Monobloc carburettor, Lucas 70w generatoir, 7'' rear and dual 6'' front brakes.
Indian Tomahawk, Trailblazer, Apache & Chief
1955 - 1960
Badged as Indians, these North American export Royal Enfield twins were given American styling with high and wide handlebars, enlarged fuel tanks and seperate headlamps.
Tomahawk: 496cc, first based on the 500 Twin then the Meteor Minor. Trailblazer: 692cc, based on the Super Meteor. Apache: 692cc, based on a highly tuned version of the Super Meteor. Chief: 692cc, based on the Constellation.
Meteor Minor, Meteor Minor Sports, Meteor Minor Deluxe
& 500 Sports Twin
1958 - 1963
Billed as ''A 500 that handles like a 250'', the Meteor Minor had a shorter stroke than its predecessor and hence a much revvier engine.
496cc. Bore and stroke 70 x 64.5mm, Lucas alternator with coil ignition, 8:1 compression pistons, 30bhp @ 6250rpm. The final version, the 1963 500 Sports Twin, had a claimned output of 33bhp and top speed of 100mph.
1959 - 1963
Fondly known as the Connie, Royal Enfield's Constellation was a snarling roadburner that put out an impressive 51bhp and had a top speed of 110mph. Sadly, it suffered from oil leaks and the scissor clutch was prone to slipping.
692cc. Bore and stroke 70 x 90mm, 8.5:1 high compression pistons, Amal TT carburettor replaced with twin 1 3/16" Amal 389 carburettors in 1960, Lucas alternator electrics with magneto ignition.
1963 - 1970
The mighty Interceptor was Royal Enfield's UK swansong. Wholly built by Enfield Precision Engineering at the Upper Westwood underground factory from 1967 onwards, MKIA and Series II export versions are highly sought after today.
736cc, bore and stroke 71 x 93mm, 52.5bhp @ 6000rpm, Seriess II Interceptors had two 30mm Amal Concentric carburettors, 12V electrics and wet sump lubrication.
2017 - present day
Launched at the 2017 EICMA show in Milan, the new 650 twins were largely designed and tested at Royal Enfield's UK Technical Centre at Bruntingthorpe, Liecestershire.
648cc. Bore and stroke 78 x 67.8mm, 47bhp @ 7250rpom, 6 speed gearbox, slipper clutch, 270 degree crank, TCI digital spark ignition, 4 valves per cylinder, air and oil cooled, shown here with the chrome 'glitter and dust' finish.
650 Continental GT
2017 - present day
The Continental GT cafe racer shares the same chassis and engine as the Interceptor. However, its handlebars, fuel tank, seat, rearset footrests and rear suspension pre-load are all unique.
648cc. Bore and stroke 78 x 67.8mm, twin cradle tubular steel frame, 174mm ground clearance, 12.5l fuel tank, 198kg dry weight, Pirelli Phantom Sportcomp tyres specially developed for the bike, 320mm floating front disc and 240mm rear disc brakes with Bosch dual-channel ABS, shown here in Ventura blue.