This military spec machine was used by a number of armed forces, including those from Britain and Cyprus, as well as a number of Gulf states. It was developed from the Armstrong MT500 with its four-stroke engine producing 30 brake horsepower.

This bike was short-lived due to the outbreak of World War II. It was first produced in 1941 as a racing bike, but as soon as the war broke out, the company turned its attention to producing models for the war effort. That said, however, the WLDR is considered the great- granddaddy to the Sporter.

This was the first-ever production racing bike released by Harley Davidson. It is a stock bike but the racing rules at the time allowed for modification once the bike had been purchased and that was the main reason Harley released it in a stock format.

With its retro '50s styling, the Heritage Softail Classic was always a hit, especially for lovers of how old Harley's looked. With the 2011 model, however, Harley even introduced more retro aspects, including half-moon floorboards and '50's styled instrumentation panels.

With many Allied troops seeing German motorbikes (like the BMW) for the first time and being impressed by them, Harley decided to produce a model similar to those European machines. The XA was very different with a boxer engine and a shaft drive. Harley wanted the bike sold for military use, but in the end, just over 1,000 were produced as the Army stuck with another Harley model, the WLA as well as the Willys Jeep.

The name 'Liberator' gives away the intentions Harley had with this machine. It was built for US armed forces and saw action throughout World War II and even in the Korean War.

Another early racing model released by Harley, the Model J set a class speed record in 1920 when it reached 103 mph at Daytona.

With its wide stance forks, the Wide Glide became part of the Harley stable in 1980. The model lasted for a few years before disappearing, until it was reintroduced in 2008. Except it was even wider, far lower and looked a little meaner!

Manufactured for only two years, the JDH was super fast and easily reached 100 mph. Harley even advertised it as their fastest ever model at the time. It was powered by a 1200 cc, 74 cubic-inch motor.

The 1958 Duo Glide is considered to be the first Harley with a proper rear suspension. It could even be adjusted for solo riding, riding with a passenger and for riders packing a few extra pounds. Harley still kept the sprung seat, however.

The 1969 Elektra Glide model was the first to feature the now famous Bat Wing fairing. Even today, although internals have changed, the Elektra Glide, which is still produced, remains much the same in terms of looks.

The last side-valve race bike produced by Harley, the KR-750 won many races in its time on the track. Better still, it was available from your local Harley Dealer, all ready for you to tune how you saw fit.

Strangely enough, the KHK had one major change from any other Harley produced before it. The gear shifter was now operated with the right foot instead of the left. Harley did this as a way to try to draw from the market of competitors who set their bikes up the same way.

The first bike considered to be a Harley 'factory custom,' the FXS Low Rider started a trend still loved by Harley fans today. It featured drag bars, mag wheels, two-into-one exhaust.

As British and Japanese bikes rose in popularity, Harley tried a radical styling approach to at least have a model that looked similar. And so the Cafe Racer was born. This was also a light bike, weighing just 515 pounds.

A descendant of police motorcycles, the FLH presented a very upright riding position. It was powered by a 1200 cc Shovelhead V-twin capable of producing 60 brake horsepower. Hollywood legend Marlon Brando owned one of these.

This tourer was released in 2009 and is still a model in the Harley range eight years later. It features a 1690cc air-cooled V-twin engine and a six-speed gearbox. The P at the end of the letter part of its name stands for police as these are popular police cruisers.

An all-black machine while keeping some chrome, the Night Train is based on the Soft Tail. And we think you will agree, it is a real looker!

This was a popular model with motorcyclists who wanted a bigger frame than what the FLH Elektra Glide offered. It was also the first Harley to make use of rubber engine mountings.

This was essentially an FXR but used by the police. The internals were the same as the FXR but externals differed greatly. Long distance enthusiasts like picking this as a tourer due to the fact that it already came with panniers amongst other features.

With no parts from any of its production bikes at the time, this was considered to be Harley's first true race machine. It was powered by a DOHC liquid-cooled V-twin which pushed out 135 brake horsepower. Only 50 were made available for sale to the public.

The XLH-61 was well priced by Harley and became very popular for this reason. And performance wise, the XLH-61 was impressive with Harley just about keeping it all street legal. Many enthusiasts actually bought this bike to race with.

The 1983 XR-1000 was an excellent bike but at $7,000 it was expensive! Harley promoted it in a unique way by creating 'Lucifer's hammer,' an XR-1000 that won a race at Daytona. It then went on to win even more races and showed the public just what the bike was capable of doing despite its price.

This was a limited edition version of the much-loved FXR which Harley had discontinued. This model was produced between 1998 and 2000.

Only 810 of the FXDG model were ever produced, making this an extremely rare Harley. Based on the Wide Glide, this model was a customized version thereof. The FXDG was affectionately known as the 'Willie G.'

The Dyna Super Glide Sport was a great Harley when it came to handling and for that reason, was popular for the six years it was available. And it's a looker as well!

The Elektra Glide is Harley's stock tourer. No mod-cons here; all you get is a decent touring motorcycle that you can customize to your heart's content, just the way you want to. And in 2009, Harley significantly improved the Elektra Glide's chassis, making it handle far better.

With its retro looks, the FXSTS Springer Softail appeals to those who prefer the older Harley look but still want modern innards on their bike. The 2006 model also introduced a fat back tire to make that 1940s style even more authentic.

Harley's first V-rod, the VRSCDA was introduced in 2001. It featured a completely new design, something Harley had never attempted before. And I am sure you will agree, they didn't do too badly.

A model available since the mid-'90s, the 2012 incarnation of the Road King gave enthusiasts a powerful tourer without all the rattle thanks to a rubber-mounted Twin Cam 103 engine. So now, all that impressive talk won't rattle your fillings loose.

Another Harley just waiting for you to customize it how you see fit, the Dyna Super Glide was first introduced in 1994. This entry-level motorcycle is perfect for those wanting their first taste of Harley.

This Harley was purposely built with the drag strip in mind. It quickly set a record once released, clearing the quarter-mile in 6.991 with Andrew Hines in the hot seat. Harleys are normally about taking your time and enjoying the scenery. This one isn't!

With its solid disk wheels and aspects of the Softail Custom and Heritage Softail Custom, the Fat Boy was a little bit of a different offering when released in 1990. It soon became hugely popular and sold by the bucketful.

Nicknamed the 'Ugly Glide,' this bike was partly designed by the legendary Eric Buell. It was fast and handled well, which made it a must-have Harley for many.

After riders complained about the original FXRS, Harley listened and made right. Not only was an extra disk brake added to the front for more stopping power, they also raised the ride height thus fixing two major complaints with the original bike.

With its retro styling, the XR 750 is quite deceiving. This bike is a monster and still wins in flat track racing despite other marques's attempts to beat it.

Based on the V-Rod, this Harley loses all the chrome for an overall black treatment. And it just looks mean! The dual overhead cam liquid-cooled Revolution engine was partially designed by Porsche.

Part of the custom motorcycle range offered by Harley, the CVO Softail Convertible can be customized just as much as a buyer wants. This bike serves two purposes. First, as a tourer and second, as a cruiser. Use it how you see fit!

This Harley received its name from the new generation of forks that were beginning to find their way into the motorcycle world. Today, hydraulic forks are taken for granted but in 1949, they were a massive step forward from a regular spring suspension. The Hydra-Glide was powered by a 'Panhead' engine.

This model, released in the 105th year of the Harley marque came with a copper paint finish which although probably shouldn't work, does! There were upgrades on mechanical parts as well with Brembo brakes now standard.

Considered the grandfather of all twins, this Harley Davidson was released in 1909. Its V-twin design was the beginning of what Harley's are known for today. Only two remain in the world.

The legendary 'Knucklehead' design helped ensure that Harley still sold motorcycles despite the huge economic downturn gripping America at the time.

Although the 8-Valve Racer was available for sale to the public, not one was ever sold. Why? Well, it was just priced way too high with Harley wanting $1,500 per bike which at the time, was a massive amount. It was the first motorcycle in which a race was won at over 100 mph, however.

Another FXR model, the Sport Glide was suited for touring thanks to its large fairing as well as saddle bags. It was powered by a 1337 cc four-stroke V-twin that produced 64 brake horsepower.

This Sportster, released in 1958 was an upgrade on the underpowered earlier model. It came about due to a request from California Harley dealers who wanted something a little more exciting for their customers.

A low rider in the best sense of the word and stylish to boot, the SuperLow put its rider just 25.5 inches above the ground. This is the perfect model for the fairer sex... and short men!

The Street Glide tourer has always been a popular Harley model and through the years, it has received numerous upgrades along the way. These include cruise control, ABS, improved brakes and in 2009, a total fairing redesign.

This was the custom version of the popular Softail which included more bling for a few more dollars. This bike has a 1584cc Twin Cam 96B balanced engine with a 6-Speed Cruise Drive transmission.

For the Harley enthusiast who doesn't like polishing chrome, the Sportster Nightster is the perfect machine.