Indian Four

Indian Four
Addvisor · CC BY-SA 4.0 · source
Name	Indian Four
Manufacturer	Indian Motocycle Manufacturing Company
Production	1928–1942
Class	Touring motorcycle
Engine	90° V4, side-valve (flathead)
Transmission	3-speed, chain final drive
Wheelbase	61–66 in (155–168 cm)
Related	Indian Chief, Indian Scout

Indian Four

The Indian Four was a flagship touring motorcycle produced by the Indian Motocycle Manufacturing Company from 1928 to 1942, notable for its longitudinal 90° V4 engine and luxury appointments. It competed with the Harley-Davidson WL and similar models from Excelsior and Vincent Motorcycles in the interwar and pre‑World War II markets, and featured in periodicals such as Motorcycle Mechanics and The Autocar. The machine appeared in endurance events linked to venues like Daytona Beach and in promotional tours involving organizations such as the American Motorcyclist Association.

History

The Four originated when the Indian Motocycle Manufacturing Company sought to expand beyond the Chief and address touring buyers during the late Roaring Twenties and Great Depression. Company executives including E. Paul duPont and engineers from the Springfield, Massachusetts works adapted designs from earlier singles and twins used in Scout development. Production changes paralleled shifts at competing firms such as Harley-Davidson Motor Company and the short‑lived Excelsior Motor Manufacturing & Supply Company. The model persisted into the World War II era before military contracts and wartime production priorities at facilities like those in Springfield Armory curtailed civilian output.

Design and Engineering

The Four used a 90° V4 flathead layout with a cast iron block and a three‑speed transmission similar to units employed by Chief teams; lubrication and cooling solutions echoed practices from Francis-Barnett and Norton Motorcycles. The chassis combined a rigid frame with telescopic fork influences later seen on BMW Motorrad bikes; braking involved drum brakes comparable to those used by Triumph Motorcycles Ltd. Styling incorporated hand‑finished chrome, leather saddlebags, and accents that matched contemporary automobiles from Packard and Cadillac. Component suppliers included magneto makers such as Lucas Industries and carburettor firms like Amal, while electrical systems referenced standards from Delco and Bosch.

Models and Variants

Throughout its run the model family offered touring, police, and sport configurations resembling parallel offerings from Harley-Davidson WL and Chief lines. Notable factory designations paralleled catalogues used by dealers like Cycle & Automobile Trade Journal and varied with trim levels offered to municipal buyers such as the New York City Police Department and privateer teams. Special versions featured sidecars compatible with outfits from Watsonian and Steib while military interest produced prototypes akin to machines trialed by United States Army evaluators. Aftermarket tuners and racing shops, including those inspired by Alvin "Ship" Schenck and period customs, produced hot‑rod and bobbed variants echoing trends from Hot Rod (magazine) culture.

Racing and Competition

The Four was campaigned in endurance and speed trials at venues like Daytona Beach and in reliability runs organized by the American Motorcyclist Association and Fédération Internationale de Motocyclisme. Riders associated with Indian marquees competed against teams from Harley-Davidson and Norton Motorcycles in hill climbs at Pikes Peak and road races near Isle of Man circuits. Specialized tuning shops and works teams prepared Four examples for trials inspired by events such as the International Six Days Trial and short sprint meetings covered by The Motor Cycle magazine. Although not a dominant racer versus lightweight Velocette or Triumph sportsters, the Four proved durable in long‑distance events promoted by touring organizations like the American Automobile Association.

Legacy and Collectibility

The Four remains prized among collectors of vintage motorcycles and motorcycle enthusiasts for its engineering rarity and association with the Indian Motocycle Manufacturing Company heritage. Surviving examples appear at museums such as the National Motorcycle Museum (United Kingdom) and exhibits curated by institutions like the Smithsonian Institution and the Henry Ford Museum. Restorers source period parts from suppliers tied to legacy names like Lucas Industries and Amal and trade through clubs including the Vintage Japanese Motorcycle Club and the Antique Motorcycle Club of America. Auction houses and events run by organizations such as Bonhams and RM Sotheby's have set price benchmarks for exceptional restorations, while reproduction parts makers referencing blueprints in archives from Indian Motorcycle support preservation efforts. Category:Motorcycles