royal enfield constellation twin

royal enfield constellation twin插图

When did the Royal Enfield constellation come out?

The Constellation was born out of the range of twins Royal Enfield launched in 1948 with their 500 Twin that grew into the touring 692cc Meteor in 1953, which in turn was joined by the sportier Super Meteor before the Constellation arrived in 1958, having at first been an export-only model branded as an Indian Apache for the US market. Why a 700?

Why Royal Enfield constellation bike failed to become popular?

Royal Enfield Constellation bike failed to became popular despite of its power and acceleration. Among many, one was Royal Enfield Constellation bike which was never able to get fame as other bikes made by Royal Enfield. It had a huge 700cc twin engine which was producing impressive 52BHP and used to come withe an “R” badge.

What is a Royal Enfield twin?

With a character all its own, Royal Enfield’s twin offered one of several alternatives to BSA/Triumph conformity, and was for several years the largest of its kind. Royal Enfield’s first post-war twin appeared in 1948 and owed more to the company’s singles than the competition.

What does Tony cording’s Royal Enfield constellation look like?

Tony Cording and his restored one-of-a-kind Royal Enfield Constellation. Engine: 693cc air-cooled OHV parallel twin, 70mm x 90mm bore and stroke, 8.5:1 compression ratio, 51hp @ 6,250rpm (claimed) Suspension: Telescopic fork front, dual shocks w/adjustable preload rear Brakes: 6in (152mm) double-sided SLS drum front, 7in (178mm) SLS drum rear

What does oil inside the crankcases mean?

With the oil inside the crankcases it meant that once things were hot, they stayed hot. The frame used the bolted together engine and gearbox as a stressed member with no lower frame rails. The engine produced the kind of vibration you got from any 360? parallel twin, though the Constellation was better than most.

What is a 692cc motorcycle?

The 692cc engine is squeezed into a frame derived from the 350 Bullet, and this punchy and muscular motorcycle is a piece of late 1950s brutalism, covered in chrome. Advert.

How many bullets did the Constellation have?

The engine of the Constellation was essentially two 350 Bullets, with two separate cast-iron barrels and twin alloy heads. There was barely an inch of spare space around the mill, though you could remove the tappet covers and set the valve clearances without taking the tank off.

Did the Constellation have a new crankcase?

Advert. The Constellation had a new design of crankcase, as Royal Enfield found their old dies were worn out.

Did the Constellation have a long stroke engine?

This gave the designers the chance to fit the camshafts higher and make the pushrods shorter, even though the Constellation had a long stroke engine . The barrels were so deeply set in the crankcase that they were almost oil-cooled.

Does a bike need an oil tank?

This meant that the bike didn’t need an external oil tank, which kept the plot compact, removed the need for external oil lines and allowed the use of a cylindrical oil filter, but did reduce the oil capacity to four pints. Advert. With the oil inside the crankcases it meant that once things were hot, they stayed hot.

What year was the Royal Enfield Constellation?

1959 Royal Enfield Constellation. Bought as a basket case, Tony Cording is proud to have his Connie back on the road. Tony Cording and his restored one-of-a-kind Royal Enfield Constellation.

How many cc is the Enfield Twin?

Whether or not its 693cc engine capacity was chosen to keep the Enfield Twin ahead of its 650cc competition, the choice had technical and production merit. The 70mm bore meant the engine could use much of the top end technology of the 350 Bullet, including the pistons and combustion chamber design.

What is the 4 speed gearbox on an Enfield 500 Twin?

In typical Enfield fashion, the 4-speed Albion gearbox bolted right to the back of the engine — known as “semi-unit.” The frame, front and rear suspension and cycle parts followed the same year’s Bullet single pretty closely, including a similar open loop frame. It’s worth noting that Enfield (along with AJS/Matchless) was one of the first to use swingarm rear suspension, six years before BSA, Norton and Triumph. The 500 Twin was smooth and reasonably quick, weighing 390 pounds dry and making 25 horsepower, giving it 85mph potential, according to period reports.

What engine did Royal Enfield use in 1958?

Royal Enfield responded with one more power boost from the 700 engine when the Constellation arrived for the 1958 season. Based on the Super Meteor, compression went from 7.25:1 to 8.5:1, and it had hotter cams, a siamesed exhaust system, and an Amal 10TT9 racing carburetor.

What gas tank did the Constellation use?

The Constellation used the same frame and running gear as the Super Meteor, but replaced the painted fenders with chrome-plated steel blades. The new 4-1/4 Imperial gallon (5 gallon U.S.) gas tank was also chromed, and featured a broad top panel finished in “polychromatic burgundy” with gold pinstriping.

How many camshafts did the Enfield use?

Like Triumph’s twins, the Enfield used two camshafts, but driven by a single chain instead of gears. The cams were removable through the primary side without splitting the cases via a pair of circular access plates. The pushrods, one at each corner of the engine, operated the four valves via rockers, each accessed by an alloy cover.

What is the Enfield ignition system?

Unusual for the time was the Enfield’s ignition system. Instead of the usual magneto was a coil ignition system fed by a 6-volt battery charged by a DC generator. Contact breaker points were mounted inside a distributor driven off the generator.

How fast was the 1959 Triumph bike?

With a suitably tuned cylinder head, the resulting bike was a real road-burner capable of well over 110mph. On test, it bettered I 15mph. The racing carb disappeared in favour of twin Monoblocs in 1959, but the bike was still fast -although it soon gained a reputation for fragility, while the front brake was inadequate for the power and speed. In fact, there were a number of niggles, which meant that the model never achieved the popularity of the Triumph twins, despite its theoretical advantages and better acceleration.

What is a 500cc engine?

A 500cc engine in the 350 single’s swinging-arm frame, it featured separate heads and barrels that improved cooling and serviceability at some cost to strength, while the crankcase had a cast-in oil container at the rear. Ignition was by.

When was the 700cc Constellation made?

The 700cc Constellation launched in the USA in 1957 , first appeared in Britain in 1958, along with a new, much lighter 500, the Meteor Minor. With new engine castings, the ‘Connie’ was sportier with a very robust bottom end, hot cams and, initially a single racing Amal TT carburettor.

When did the Enfield 750 interceptor come out?

This became the ultimate example of the ‘Connie’, because in 1963, Enfield launched the even larger 750 Interceptor (actually a 736cc design) while the Constellation was relegated to sidecar duty before production ceased that year.

Is the 1953 Meteor a 500 twin?

It was rather unimaginatively called the 500 Twin. A few years later the 1953 700cc Meteor went one better than the rival 650s by offering what was effectively a doubled-up 350 single. Design changes to the engine, lubrication system and cycle parts resulted in the 1956 Super Meteor.

When did Royal Enfield twins come out?

Royal Enfield’s first post-war twin appeared in 1948 and owed more to the company’s singles than the competition.

How fast is the Royal Enfield interceptor 750?

The air-cooled engine was capable of producing 52.5 bhp of maximum power at 6,000 rpm, mated to a 4-speed gearbox. The Interceptor 750 had a top speed of 105 mph (175 km/h).

How fast is the Meteor 700?

The Super Meteor 700 had a top speed of 100 mph (161 km/h). The Royal Enfield Super Meteor 700 was equipped with a 692 cc, twin-cylinder, OHV (Over Head Valve), air-cooled motor that was capable of producing 36 bhp of maximum power at 6,000 rpm, mated to a 4-speed gearbox. The Super Meteor 700 later received a power bump with a maximum output …

How fast is the Royal Enfield Taurus 325?

The motorcycle had an enviable fuel economy of 85 km/l, while it got a top speed of 65 km/h. The Royal Enfield Taurus 325 had a kerb weight of 196 kg. The bike was on sale in India from the late 1980s till 2000 and was exported to some international markets.

What engine is used in the Royal Enfield Taurus?

Royal Enfield Tauras Diesel [Image Source] The Royal Enfield Taurus 325 was the first and the only mass-produced diesel motorcycle to be sold in India. The Taurus 325 used a Greaves Lombardini-sourced 325 cc, single-cylinder diesel motor with indirect injection.

What year was the Royal Enfield 700?

Royal Enfield Constellation 700. The Royal Enfield Constellation 700 was a product that was specific to the North American market. The bike was on sale from 1958 to 1963 and was described as the first Superbike of its era. The engine on the bike was not known for its reliability and received a lot of updates.

What is the bore of a Royal Enfield Lightning 535?

The bike used the same engine from the Bullet 500, which was bored-out to 535 cc with an 87 mm bore.

How many cc is a GT 250?

Powering the GT 250 was a 248 cc, single-cylinder motor that pumped out a maximum power of 21 bhp at 7,500 rpm, mated to a 4-speed transmission.