Janus Halcyon 450
2021Allround

Janus Halcyon 450

Key specifications

Engine
445 cc
Power
30 HP
Weight
161 kg
Fuel type
petrol
Fuel capacity
2.0 L
Seat height
30 mm
Front brakes
Double disc. Two-piston caliper Brembo
Rear brakes
Single disc. Single Piston caliper brembo

Overview

Introducing the 2021 Janus Halcyon 450, a captivating blend of classic aesthetics and modern engineering, positioned perfectly for riders who crave versatility and charm in their motorcycle experience. As part of Janus Motorcycles' lineup, the Halcyon 450 is designed for those who appreciate the artistry of two-wheeled travel, combining a vintage-inspired design with contemporary performance. This allround motorcycle is not just a mode of transportation; it’s a lifestyle choice that celebrates the joy of motorcycling in its purest form. At the heart of the Halcyon 450 lies a robust 445 cc single-cylinder, four-stroke engine, delivering an exhilarating 30 horsepower at 7500 RPM. This power output translates into a thrilling top speed of 90 mph, ensuring that whether you’re cruising through city streets or embarking on longer journeys, the Halcyon delivers a spirited ride. The air-cooled engine, paired with an efficient carburettor and CDI ignition, provides a reliable yet engaging experience, while the chain final drive ensures smooth power delivery. The motorcycle’s lightweight frame, weighing in at just 354 pounds, enhances maneuverability and responsiveness, making it a joy to ride for both seasoned enthusiasts and newcomers alike. The Halcyon 450 is equipped with impressive features that enhance both performance and comfort. Its proprietary dual progressive shock leading-link front suspension and cantilever transom rear suspension with dual coil-over Ikon shocks provide a plush ride over various terrains, ensuring that the bike remains stable and composed. The braking system, featuring Brembo double disc brakes at the front and a single disc at the rear, offers exceptional stopping power, instilling confidence in the rider. With an array of color options — from British Racing Green to Vintage Red — and a comfortable seat height of 30 inches, the Halcyon 450 is both stylish and accommodating, making it an appealing choice for a wide range of riders. In sum, the 2021 Janus Halcyon 450 speaks to those who value the artistry of motorcycling, providing a unique blend of style, comfort, and engaging performance that stands out in today’s market. Whether you’re a seasoned rider or just starting your journey, this motorcycle promises to deliver a ride filled with character and joy.

Pros

  • Classic Aesthetics with Modern Performance: The Halcyon 450 offers a beautiful vintage-inspired design paired with reliable modern engineering, appealing to both traditionalists and contemporary riders.
  • Lightweight and Agile: Weighing only 354 pounds, this motorcycle is incredibly nimble, making it perfect for urban commuting and leisurely rides alike.
  • Comfortable Ride: The advanced suspension system ensures a smooth and comfortable experience, even on bumpy roads, paired with excellent braking performance for added safety.

Cons

  • Limited Power Output: While the engine provides sufficient power for casual riding, it may not satisfy those seeking higher performance or faster acceleration.
  • Fuel Capacity: With a fuel tank capacity of just 2.00 gallons, the Halcyon 450 might require more frequent stops during longer journeys compared to other touring options.
  • Niche Market Appeal: The classic style may not resonate with all riders, particularly those who prefer more aggressive modern motorcycles with sporty features.

Technical details

Source specification data

Make
Janus
Model
Halcyon 450
Category
Allround
Starter
Electric
Color Options
British Racing Green
,
Vintage Red
,
Aga Cream
,
Black
,
American Blue
,
Charcoal
,
Olive
,
Factory Warranty
2-year unlimited-mileage warranty
Power
30.0 HP (21.9 kW)) @ 7500 RPM
Clutch
Wet multiplate
Ignition
CDI
Top Speed
144.8 km/h (90.0 mph)
Fuel System
Carburettor. Electronic injection
Compression
10.1:1
Displacement
445.0 ccm (27.15 cubic inches)
Cooling System
Air
Engine Details
Single cylinder, four-stroke
Lubrication System
Dry sump with gerotor pump, cartridge filter, and oil cooler
Transmission Type Final Drive
Chain
Dry Weight
160.6 kg (354.0 pounds)
Seat Height
762 mm (30.0 inches) If adjustable, lowest setting.
Fuel Capacity
7.57 litres (2.00 gallons)
Overall Width
787 mm (31.0 inches)
Overall Height
1041 mm (41.0 inches)
Overall Length
2184 mm (86.0 inches)
Power Weight Ratio
0.1868 HP/kg
Rear Tyre
4.50-18
Frame Type
DOM tubular steel cradle
Front Tyre
4.00-18
Rear Brakes
Single
disc.
Single Piston
caliper brembo
Front Brakes
Double disc. Two-piston caliper Brembo
Rear Suspension
Proprietary
cantilever transom with dual progressive coil-over
Ikon
shocks
Front Suspension
Proprietary dual progressive shock leading-link

Available colors

British Racing GreenVintage RedAga CreamBlackAmerican BlueCharcoalOliveCardinal Red