Back to Bike FinderYears: 1975 · 1974 · 1973 · 1972
Honda CB 450 disc
1973Classic

Honda CB 450 disc

Key specifications

Engine
445 cc
Power
45 HP
Fuel type
petrol
Fuel capacity
3.7 L
Transmission
5-speed
Front brakes
Single disc
Rear brakes
Expanding brake

Overview

Introducing the 1973 Honda CB 450 disc, a classic motorcycle that embodies the spirit of the early '70s with its remarkable blend of performance, style, and innovative engineering. Positioned as a versatile middleweight bike, the CB 450 disc captured the hearts of both novice riders and seasoned enthusiasts. With its striking appearance and distinctive features, this motorcycle played a pivotal role in Honda's efforts to dominate the market during a time when the motorcycle culture was burgeoning across the globe. At the heart of the CB 450 disc lies a robust 445cc twin-cylinder, four-stroke engine, delivering a spirited 45 horsepower at a thrilling 9,000 RPM. This powerplant is engineered for responsiveness and smoothness, making it ideal for both spirited rides on twisty backroads and leisurely jaunts through the city. With a top speed of 171 km/h (106.3 mph), the CB 450 disc offers an exhilarating ride that is enhanced by its 5-speed gearbox, allowing for seamless acceleration and efficient cruising. The bike’s air-cooled design and 9.0:1 compression ratio contribute to its reliability and durability, ensuring that the joy of riding is never interrupted. The 1973 Honda CB 450 disc is also notable for its innovative features—especially the single disc brake at the front, which was a groundbreaking addition for its time, providing superior stopping power and handling compared to conventional drum brakes. The rear expanding brake offers a balance of performance and control, further enhancing rider confidence. With a weight of 204 kg (449.7 pounds) and a fuel capacity of 14 liters (3.70 gallons), the bike strikes an appealing balance between agility and stability, making it an excellent choice for both commuting and weekend adventures. **

Pros

  • Performance: The powerful 445cc engine delivers impressive acceleration and a thrilling top speed, making it a joy to ride.
  • Innovative Braking: The introduction of a single disc brake at the front enhances stopping power and handling, setting a standard for future motorcycles.
  • Classic Appeal: With its vintage design and iconic status, the CB 450 disc is a beloved classic that appeals to collectors and enthusiasts alike.

Cons

  • Weight: At 204 kg, some riders may find it heavier than contemporary models, which can affect maneuverability, especially in tight spaces.
  • Limited Technology: Compared to modern motorcycles, the lack of advanced features such as fuel injection or ABS can make it less appealing for daily use.
  • Maintenance Needs: Its vintage nature often requires more regular maintenance and care, which may not suit all riders' lifestyles.

Technical details

Source specification data

Make
Honda
Model
CB 450 disc
Category
Classic
Power
45.00 HP (32.8 kW)) @ 9000 RPM
Gearbox
5-speed
Top Speed
171.0 km/h (106.3 mph)
Bore X Stroke
70.0 x 57.8 mm (2.8 x 2.3 inches)
Compression
9.0:1
Displacement
445.00 ccm (27.15 cubic inches)
Cooling System
Air
Engine Details
Twin, four-stroke
Valves Per Cylinder
2
Transmission Type Final Drive
Chain
Fuel Capacity
14.00 litres (3.70 gallons)
Weight Incl Oil Gas Etc
204.0 kg (449.7 pounds)
Rear Tyre
3.50-18
Front Tyre
3.25-18
Rear Brakes
Expanding brake
Front Brakes
Single disc