1921 Megola 640CC Touring Motorcycle

Produced in Germany from 1921 to 1925, the Megola Motorcycle only saw around 2,000 bikes completed. That's why this 1921 Megola 640CC Touring Motorcycle model is such a rare find. It's powered by an original 640cc five-cylinder radial engine that is built into the front wheel and is started by pushing or rotating the wheel with the machine on its stand. The model was built four years ago and arrives at auction for collectors with a rich sense of moto history as well as an appreciation for its incredibly unique features and starting technique.

Icon 1000 Three Martini Lunch Motorcycle

Named after the design team's booze intake during its creation, the Icon 1000 Three Martini Lunch Motorcycle is a low-slung take on the Triumph Thruxton. Painted Verdoro Green, a color stolen from the Pontiac GTO, the bike mixes KZ1000 wheels and Harley forks with the Triumph frame, an integration made possible with the help of a Nitron suspension, brakes from EBC, and Avon tyres. The result is a unique, sporting bike that demands attention, from its distinct color to the "X" pattern over the headlight.

Pan Meka Motorcycle

For their first build, Pan Speed Shop turns a BMW K1200S into a dystopian dream ride. Stripped to the frame, the Pan Meka Motorcycle replaces its original plastic body with handmade raw steel forms and a custom-designed exhaust. The bike was totally rewired for an upgraded digital dash and push button controls. While all the lights were handcrafted, the front, made from double Xenon day lights that open and close automatically, totally separates the bike from its former self.

Deus Ex Machina Ago TT Motorcycle

Named after racer Giacomo Agostini, who won 13 Grand Prix championships and 10 Isle Of Man TT's, the Deus Ex Machina Ago TT Motorcycle is part tribute, part modern reinvention. Based on an MV Agusta Brutal 800rr, the bike sits on a custom subframe, and offers several dramatic features, among them the custom aluminum tank shell formed from seven separate pieces of aluminum. There's also a handmade aluminum tail that houses the electronics, a custom Öhlins rear shock, Beringer hand controls, and a Scitsu tach. Also notable is what it's lacking, namely a headlight, turn signals, and license plate, as they're unnecessary for a bike whose only home is the track.

Triumph Rocket

Triumph held the motorcycle land speed record for nearly 15 years straight, but that run ended in 1970. The Triumph Rocket was built to bring it back after a 45 year absence. Powered by a pair of turbocharged Rocket II engines producing over 1,000hp combined, this carbon Kevlar-skinned land missile is over 25 feet long, yet just two feet wide and three feet tall. It'll be piloted by Guy Martin, a famous British motorcycle racer and one of the few crazy enough to compete in the Isle of Man TT. Aiming for a speed of over 400 mph, they'll take their shot later this month.

Tarus 2x2 Motorcycle

You don't need us to tell you how much fun it is to go off-road in an ATV. But the Tarus 2x2 Motorcycle raises the off-road stakes even higher. This ATV disguised as a motorcycle is capable of slicing through rough terrain like mud, swamps, snow, and mountains. It can also navigate where four wheel ATVs cannot due to its compact, light-weight size. Weighing less than 200 pounds, it's collapsible and can be broken down in less than five minutes and stored in the trunk of a car.

BMW Titan Motorcycle Concept

It's just a concept. But what a concept it is. Designed with runs at the land speed record in mind, this BMW Titan Motorcycle Concept is an angular, air-swallowing ode to speeders of old. It was created by Turkey-based designer Mehmet Doruk Erdem, its front wheel is completely hidden inside the wide, vent-ridden body work, with the exposed rear wheel and lie-flat riding position the only hints at the bike's true purpose.

Death Machines Of London Up Yours Copper Motorcycle

"Faster, faster, until the thrill of speed overcomes the fear of death." This Hunter S. Thompson quote served as inspiration for and appears on the stunning Death Machines Of London Up Yours Copper Motorcycle. Based on a 2007 Triumph Thruxton 900, every piece on the bike — save for the Spitfire toggle switches — is either modified or custom. That includes the exhaust, with ceramic coated pipes and a carbon fiber muffler that exits through a hole in the center of the rear light, the hand-carved American Walnut seat, the bushed aluminum light cowl with integrated speedometer, the sweeping, hand-bent bars, and even the sprocket cover with solid brass grills.

Photos: David Clerihew / DMOL

Deus Ex Machina Malachi Crunch Dirt Bike

Unlike many custom rigs that are more for easy cruising than hard riding, the Deus Ex Machina Malachi Crunch Dirt Bike was built to race from the get-go. Adhering to VMX regulations, the Deus Japan team went about modifying the bike while retaining the Honda XL500's spirit. As a result, the standard steering bearings and head stock were retained, but paired with a set of late '80s XR600 forks, while a custom rear suspension was added, with nearly 200mm of travel. Other modifications include a custom swing arm, Ikon alloy gas shocks and springs, and an epoxy composite seat base and side covers that provide modern comfort without losing the original's early motocross DNA.

Jamesville Harley Shovelhead Motorcycle

Based on a '74 Harley-Davidson FX Super-Glide, this Jamesville Harley Shovelhead Motorcycle takes its unlikely source and turns it into an agressive cafe racer. It's powered by an 80ci S&S motor mated to a five speed transmission, giving the bike power to go along with its looks. Speaking of which, it has a custom seat pan and high cowl with integrated tail light, an ever so slightly modified tank, Porgressive front and rear shocks, a custom exhaust that ends up by the seat, and a fairing that was a chance purchase off eBay that ended up matching like a glove.

Photos: Mark Dexter / THE LAB

Triumph x Icon Dromedarii Motorcycle

Designed with a post-apocalyptic scenario in mind, the Triumph x Icon Dromedarii Motorcycle is a rugged, utilitarian build. Based on a 2011 Triumph Tiger 800XC, it's seen all plastic removed and replaced with steel cages and protective plates, while the stiffened Ohlins suspension, raised subframe, and knobby Conti tires all help with riding in a world where roads are no more. It also has a custom oversized fuel tank, Rotopax fuel cells, HID lighting, and a Ballistic lithium battery. As a finishing touch, racks in both the front and rear let you transport goods easily without the need for a bulky backpack.

Harley-Davidson XG750R Flat Track Motorcycle

Built for racing on dirt ovals, the Harley-Davidson XG750R Flat Track Motorcycle is the company's first all-new flat track race bike in 44 years. It's powered by a fuel-injected, liquid-cooled Harley-Davidson 750cc Revolution X engine, modified for the track by Vance & Hines Motorsports, who also developed the bike's racing frame. Its right side clad in Harley's signature orange and dominated by the huge racing exhaust, while the left side is more subdued and clad almost entirely in black. Built specifically for competition, this is one bike you won't see for sale at your local dealer anytime soon.

BMW R 5 Hommage Motorcycle

Built to celebrate the 80th anniversary of BMW's legendary boxer, the BMW R 5 Hommage Motorcycle is a carefully updated take on the classic. Dreamed up by BMW Motorrad head designer Ola Stenegard and brought to life by builders Ronna and Benna Norén and Sebastian Gutsch, it has a custom frame that's very similar to the original, yet adds in modern elements like a comfortable rear suspension and modern front fork. The engine is an original R 5, restored to glory and paired with a supercharger and custom stainless steel exhaust for added power. Finishing off the bike are a hand-hammered steel tank with ghosted black paint, a one-off seat covered in hand-stitched leather, and custom handlebars with machined, adjustable controls. A fitting tribute to a great pre-war bike.

Vintage Steele 1978 Yamaha SR500 Motorcycle

You don't need a crazy body or audacious exhaust to make a great custom bike. This Vintage Steele 1978 Yamaha SR500 Motorcycle is proof. Built by the Vermont-based cycle shop, it keeps things simple yet stylish, with a knobby rear tire, a retro-styled white gas tank, gold tinted wheels, and a blue-tinted frame that adds a necessary splash of color. And unlike most custom rides, this one won't cost a fortune to put in your garage.

Deus Ex Machina Bali Dog Motorcycle

As the first bike out of the company's Indonesian arm, you'd think the Deus Ex Machina Bali Dog Motorcycle would be a display-type piece. Instead, it never quits changing. Reimagined multiple times to suit the current rider's needs, it began life as a plastic-clad Yamaha Scorpio, which has since been completely stripped, and is currently outfitted with knobby tires appropriate for the island's rugged trails, a plastic fender for added durability, a vintage lamp and seat for retro appeal, a custom tank built to match the matte-black look, and, of course, bars for carrying your board to and from the beach.

Diamond Atelier BMW Mark II Series Motorcycle

Developed in collaboration with BMW Motorrad designer Julian Weber, the Diamond Atelier BMW Mark II Series Motorcycle puts a charismatic spin on the 2-Valve Monolever. The bike comes with either an 800 or 1,000cc engine, and is available in three stages, each with different equipment and levels of modification. No matter which one you choose, you get an aggressive, low-slung cafe racer-style body in your choice of color, and the satisfaction of knowing you own one of just 10 such examples in the world.

Classified Moto BW650 Motorcycle

Inspired by the Yamaha BW200 — a bike that was company founder John Ryland's first ride, and he describes as "a two-wheeled three-wheeler" — the Classified Moto BW650 Motorcycle is ready for both on- and off-road adventure. The BW200 didn't just serve as a design guide, though, as it also supplied the rear swing arm, attached to a Honda XR650L donor with Yamaha WR250R forks. Also notable are the custom triple trees, stainless exhaust and intake, upholstered waxed canvas and leather seat, and the impossible-to-miss oversized STI Black Diamond tires.

Photos: Adam Ewing / Classified Moto

BMW K100 Impuls K101 Motorcycle

Based on a K100 from 1985, the BMW K100 Impuls K101 Motorcycle takes a three-decade-old bike and brings it firmly into modern times. Impuls worked with artist Fabian Gatermann, who scanned the motorcycle in 3D, modified the structure, then created a series of polygons for the gas tank and seat which were then replicated in real life by hand. The result is a merging of digital and manual techniques that's fitting for a bike that has its roots in the past yet is perfectly suited for the future.

Triumph Miss Moneypenny Bonneville Motorcycle

If you're going to customize a Triumph Bonneville Standard, you might as well go for broke. This Ducati Miss Moneypenny Triumph Bonneville Motorcycle is a collaboration between Marcos Martines and Ducati Triumph NYC that was hatched when a client wanted something original he could ride and park in his living room. The fuel tank, headlight, bucket, inner ring, skid plate, and fenders were all removed and replaced with shiny copper while a custom leather seat was created using a British Customs seat pan. As appealing as Monneypenny herself, and optimized for the streets of NYC thanks to suspension modification, adjustable springs, and piggyback shocks.

Rokon Trail-Breaker Dirt Bike

Although it may look vintage, the Rokon Trail-Breaker Dirt Bike is anything but old. The classic 60's frame has been updated with a patented AutoGrab front suspension, making riding on mud, sand, or snow feel almost as smooth as asphalt. A pair of wide tractor tires with all-wheel drive capability can handle any terrain, while a set of hollow drum wheels can provide floatation or storage for over two gallons of fuel or water to help get you way off the beaten path.

Lazareth LM847 Quad Motorcycle

Most motorbikes don't have four wheels. Most aren't powered by Maserati engines, either. Both are defining features of the Lazareth LM847 Quad Motorcycle, essentially a sport bike built around a 4.7L V8 producing 470 hp. Despite its massive engine, it has all the properties you'd expect in a bike, such as handlebars, a low-slung saddle, the ability to lean — at least a little — in the turns, and distinctive headlamps.

Bott XC1 Motorcycle

Based on a Buell XB12 but with plenty of XR1 components, the Bott XC1 Motorcycle is a cafe racer that's easily self built and customizable. Its secondary fueltank under the rear shock gives it a total fuel capacity of 13 liters, plenty enough to power the 100 hp Thunderstorm V-Twin engine. And while the geometries are the same as the Buell, it shares its frame, secondary tank, swingarm, suspension, wheels, and brakes with the Bott XR1. Available as a kit or in pre-built form.

Revival BMW Landspeeder Motorcycle

Based on the record-breaking 1928 BMW R37 ridden by Ernst Henne, this Revival BMW Landspeeder Motorcycle is a modern interpretation of a legendary racing bike. Built to perform yet destined for life in a private gallery, it features an airhead engine that was rebuilt anyway, set lower than the original, and this time in a frame built from flat-cut steel instead of tubing. There's no lights, battery, or alternator, since racing and/or display bikes don't need them. Nor do they need brakes, so the straight spokes in the front and solid wheel cover in the rear appear unadorned. Finally, there's the stainless steel exhaust system with browned pipes, a reminder that while it might not take you to the store and back, it's got a growl every bit as formidable as any chopper down the street.

Fonzie's 1949 Triumph Trophy 500 Motorcycle

Everyone old enough to remember Happy Days knows how iconic Henry Winkler's "The Fonz" was. Now you can own his ride. Originally built by Hollywood bike legend Bud Ekins and one of only three used on the show, Fonzie's 1949 Triumph Trophy 500 Motorcycle is the ultimate piece of fan memorabilia. Fully documented when it was auction by Bonhams several years back, the 500cc model has buckhorn handlebars, a silver gas tank, and a removed front fender, and is completely unrestored, bearing all the scars it earned during filming. The downside? If you want the matching motorcycle jacket, you're going to have to break into the Smithsonian to get it.

Deus Ex Machina Two-Up Yamaha Motorcycle

Based on a Yamaha TW 225, the Deus Ex Machina Two-Up Yamaha Motorcycle plusses the diminutive bike with a number of upgrades. The engine and wheels are done up with black paint, the better to contrast with the vintage Husky aluminum fuel tank sporting a fresh white paint job from Dutchy Motorcycle. A SuperTrapp muffler provides a deeper growl, air now arrives via a high-flow K&N filter, an EasyRider seat ensures a comfortable ride, and the twin head and tail lights give it an even more recognizable look.

Evel Knievel's 1976 Harley-Davidson XL1000 Motorcycle

The most well known American daredevil of all time left a lasting mark on our culture. Known for his ramp to ramp motorcycle jumps, Knievel also was the subject of two films. The second film, Viva Knievel! starred Knievel himself and featured this 1976 Harley-Davidson XL1000 Motorcycle. The bike is a 1976 Ironhead Sportster 1000 made to look like one of Knievel's XR-750 jump bikes. It was on display in a personal museum for many years and restored cosmetically by the man who painted Knievel's jump bikes. Available at auction in January in Las Vegas.

Autofabrica Type 10 Motorcycle

Based on the notoriously '80s-styled BMW R80, the Autofabrica Type 10 Motorcycle gives the bike new life as a pared-down custom. The original bike was completely stripped down, revealing the airhead engine and graceful lines of the tank. Modifications then began, with the front end lowered for a more aggressive look, red acrylic brake light fins and frame tube-mounted turn indicators added, and hand-bent marine-grade SAE 316 stainless steel exhaust pipes attached. The slightly revised tank now sports a deep blue paint job, while the tan leather seat accommodates two riders thanks to hidden, removable passenger foot pegs.