Back to Bike FinderYears: 1953 · 1952 · 1951 · 1950 · 1949
Ariel KH 500 Red Hunter
1951Allround

Ariel KH 500 Red Hunter

Key specifications

Engine
498 cc
Power
28 HP
Weight
177 kg
Fuel type
petrol
Fuel capacity
4.5 L
Transmission
4-speed
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

### Introducing the 1951 Ariel KH 500 Red Hunter The 1951 Ariel KH 500 Red Hunter stands as a classic icon of British motorcycling, embodying the spirit of the post-war era. Positioned as an all-rounder, this motorcycle catered to a diverse range of riders, from daily commuters to weekend adventurers. With its distinctive red finish and classic styling, the Red Hunter not only exudes charm but also represents a time when motorcycles were crafted with both artistry and practicality. Hailing from a lineage owned by BSA since 1944, Ariel's heritage is woven into the fabric of this remarkable machine, making it a sought-after piece among collectors and enthusiasts alike. ### Engine Performance and Riding Characteristics At the heart of the KH 500 is its robust 498 cc twin-cylinder, four-stroke engine, which delivers a spirited 28.03 horsepower at a lively 6500 RPM. This power, combined with a compression ratio of 7.5:1, allows the Red Hunter to reach an impressive top speed of 145 km/h (90.1 mph), making it a thrilling ride for its time. The smooth operation of the 4-speed gearbox and chain-driven final drive enhances the overall riding experience, ensuring that riders can navigate through urban environments or open roads with confidence. Its air-cooled design, paired with a classic carburettor fuel system, emphasizes simplicity and reliability, hallmark traits of the era. ### Key Features and Technology The Ariel KH 500 Red Hunter is not just about raw power; it’s also about comfort and control. The motorcycle features a duplex loop frame that provides a solid foundation and stability while riding. With telescopic forks at the front and a rigid rear suspension, the bike offers a balance between agility and comfort, making it suitable for various riding conditions. The expanding drum brakes at both the front and rear ensure dependable stopping power, which is vital for safety on the road. With a fuel capacity of 17 liters (4.49 gallons), the Red Hunter is equipped for longer rides, allowing enthusiasts to explore the open road without frequent refueling stops. ###

Pros

    Cons

    • Classic Aesthetics: The striking red color and vintage styling make it a head-turner at any gathering or show.
    • Solid Performance: The 498 cc engine provides a healthy power band, ensuring an enjoyable and engaging ride.
    • Comfortable Riding Position: The design promotes a comfortable riding posture, ideal for both short commutes and long-distance journeys.
    • Weight Consideration: At 177 kg (390.2 pounds), the bike can feel heavy for some riders, especially at low speeds.
    • Limited Technology: As a vintage motorcycle, it lacks modern features such as advanced braking systems and electronic ignition, which may deter some riders.
    • Maintenance Needs: The air-cooled engine and carburettor system may require more frequent tuning and maintenance compared to contemporary motorcycles.

    Technical details

    Source specification data

    Make
    Ariel
    Model
    KH 500 Red Hunter
    Category
    Allround
    Starter
    Kick
    Comments
    Ariel was owned by BSA since 1944.
    Color Options
    Red
    Power
    28.03 HP (20.5 kW)) @ 6500 RPM
    Clutch
    dry plate
    Gearbox
    4-speed
    Ignition
    Lucas
    Top Speed
    145.0 km/h (90.1 mph)
    Fuel System
    Carburettor
    Bore X Stroke
    56.0 x 86.0 mm (2.2 x 3.4 inches)
    Compression
    7.5:1
    Displacement
    498.00 ccm (30.39 cubic inches)
    Cooling System
    Air
    Engine Details
    Twin, four-stroke
    Exhaust System
    2-into-2 pipes
    Lubrication System
    Dry sump
    Transmission Type Final Drive
    Chain
    Dry Weight
    177.0 kg (390.2 pounds)
    Fuel Capacity
    17.00 litres (4.49 gallons)
    Power Weight Ratio
    0.1584 HP/kg
    Seat
    Solo seat with springs
    Wheels
    Wire spoked
    Rear Tyre
    3.50-19
    Frame Type
    Duplex loop
    Front Tyre
    3.00-20
    Rear Brakes
    Expanding brake (drum brake)
    Front Brakes
    Expanding brake (drum brake)
    Rear Suspension
    Rigid
    Front Suspension
    Telescopic forks

    Available colors

    Red