Remembering the 1940 Crocker V-Twin

The 1940 Crocker V-Twin motorcycle, also known as the “Big Tank”, is one of the rarest American motorcycles. The bike debuted in 1935 and was named the fastest production bike in the United States. The 1940 Crocker V-Twin came with various functional and aesthetic designs, including a 1000cc overhead valve (OHV) V-twin engine, three-speed transmission, cast aluminum fuel tanks and even more. Since its release, the Crocker has been known for its endearing and tangible characteristics, which clearly distinguish ordinary motorcycles from truly meaningful motorcycles. Unlike earlier models which incorporated a hemispherical head with exposed valve springs, later Crocker models featured a flat squish-type combustion chamber with unexposed valve springs. At the time of its release, the 1940 Crocker V-Twin bike was sold with an unrivaled 1000cc OHV V-Twin, which proved to outperform the Harley-Davidson Knucklehead for a few months. The 1940 “Small Tank” engine can produce up to 60 horsepower and reach top speeds of 120 mph. No attempt is made to hide the amazing features of the bike, such as; floor-style footpegs, bike kickstarter, cast aluminum fuel tanks and tank-mounted shifter. In addition to all Crocker V-Twin models equipped with overhead valves, they also include a more upright suspension fork which improves the overall handling of the bike. Read on to learn more about the 1940 Crocker V-Twin motorcycle.


With its impressive road performance and legendary styling, the Crocker V-Twin 1940 is America’s quintessential V-Twin model. The bike was designed by Albert Crocker, who created a machine that was incredibly faster than any other V-Twin model available at the time. The 1940 Crocker also came with an eye-catching look that was nicely accented with the coolest customization trends of the late 1930s. Around 30 speedway bikes were first produced before the Crocker hit the market. V-Twin. The first Crocker V-Twin was equipped with a 1000 cc (61 in3) OHV engine producing between 55 and 60 horsepower, which was the most power produced by a Harley-Davidson and Indian motorcycle at the time. The 1940 Crocker V-Twin also boasted abbreviated front fenders, extra-thick cylinders, teardrop-shaped fuel tanks, larger pistons, and tall handlebars that were very rare in the late 1930s. 1940 Crocker V-Twin could reach top speeds of 120–125 mph, making it the fastest production motorcycle at the time.

When it debuted in 1936, every Crocker Big V-Twin model featured a 45-degree V-twin engine with a hemispherical OHV cylinder and an incredible 3-speed gearbox. This 1000 cc Big Twin engine produced between 55 and 60 hp, which exceeded its American rivals by around 40%. In 1938 Crocker decided to release the later V-Twin “Big Tanks” models to enlarge their distinctive cast aluminum fuel tanks. Many Crocker models were made to order, with the 1,491 cc (94 cu in) being their largest displacement at the time. The 1940 Crocker V-Twin motorcycle is a legendary and spectacular motorcycle, as it is arguably the most collectible motorcycle ever made. Unfortunately, production was stopped in 1942; after the war, work restrictions were imposed. This led to a huge shortage of critical manufacturing equipment, and company founder and owner Albert Crocker decided to cease motorcycle production. It is reported that approximately one hundred models of the Crocker V-Twin models were produced before wartime work restrictions.

Engine and gearbox

In the late 1930s, Albert Crocker established the Crocker Motorcycle Company and began producing the Crocker V-Twin bicycle – a legendary high-performance overhead-valve V-twin touring machine. This bike is equipped with a 1000 cc (61 cu in) hemispherical OHV engine, giving it impressive road performance. All Crocker models are built to customer specifications; thus, some V-Twin bikes feature a 1,491 cc (91 cu in) Hemi-head engine. According to Gaukmotors, Crocker’s “Big Tank” earned a reputation as the fastest motorcycle of the era after beating Harley-Davidson’s V-Twin model. The 1940 Crocker V-Twin made its debut in 1935, and the manufacturing brand intended to make it the most powerful and durable V-Twin model on the market. That said, they fitted it with a 45-degree V-twin hemispherical OHV cylinder engine, a three-speed gearbox and an almost “square” bore x stroke (3.62 x 3, 25 inches). However, early Crocker models came with a pair of 2.5 gallon cast aluminum fuel oil tanks, Indian brake shoes, headlights and timing gears.

Other Features

The Model 1940 Crocker V-Twin comes with a number of functional and stylish design features from its production era. Company founder and owner Albert Crocker decided to highlight a number of aesthetic features of the 1940 Crocker V-Twin motorcycle: the tank-mounted shifter, a bicycle pedal starter, floor-style foot pegs and cast aluminum fuel/oil. reservoirs. Moreover, the elegance and functionality of the bike are showcased through the unrivaled 1000cc hemispherical OHV engine, which ensures that the bike delivers a unique riding experience. The 1940 Crocker V-Twin motorcycle is arguably the fastest and most sought after V-Twin model of its time.


Generally, all Crocker V-Twin models are very expensive motorcycles. According to Motorbiscuit, the 1940 Crocker sold for $230,000 at the MidAmerica Auctions motorcycle auction held in January 2007 in Las Vegas. Additionally, the most recent sale of the 1940 Crocker V-Twin motorcycle was at the Mecum Motorcycle Auction in January 2019, in Las Vegas, where this legendary motorcycle achieved a record sale of $704,000.

Final Thoughts

Besides being one of the rarest American motorcycles of its time, the 1940 Crocker V-Twin comes with some amazing and unique features including; a mighty 1000 cc (61 cu in), cast aluminum oil/fuel tanks, bicycle pedal starter and many other features.

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