What category is the 2026 Janus Gryffin 450?

The 2026 Janus Gryffin 450 has a Category of Classic.

What is the engine size of the 2026 Janus Gryffin 450?

The 2026 Janus Gryffin 450 has a Capacity: of 445.0 ccm (27.15 cubic inches).

What type of engine does the 2026 Janus Gryffin 450 have?

The 2026 Janus Gryffin 450 has a Engine type of Single cylinder, four-stroke.

How many gears does the 2026 Janus Gryffin 450 have?

The 2026 Janus Gryffin 450 has a Gearbox of 5-speed.

Janus Gryffin 450 - 2026 Specifications and Reviews

Name: 2026 Janus Gryffin 450
Brand: Janus

The 2026 Janus Gryffin 450 is a classic single-cylinder motorcycle ideal for riders seeking vintage charm with modern reliability. Powered by a 445cc SWM engine producing 30 horsepower, it delivers nimble handling and efficient performance for commuting and casual riding. Known for its retro styling and dependable engineering, this bike suits enthusiasts who appreciate timeless design without sacrificing contemporary features.

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General information
Color Options	British Racing Green, custom colours
Category	Classic
Engine and Transmission Specifications
Starting	Electric
Clutch	Wet multiplate
Final Drive	Chain (final drive)
Gearbox	5-speed
Cooling System	Oil & air
Ignition	CDI
Fuel Control	Single Overhead Cams (SOHC)
Induction	Injection
Valves Per Cylinder	4
Compression Ratio	10.1:1
Max Power	30.0 HP (21.9 kW)) @ 7500 RPM
Engine Details	SWM engine
Capacity:	445.0 ccm (27.15 cubic inches)

Physical measures and capacities
Fuel Capacity	8.33 litres (2.20 US gallons)
Wheelbase	1346 mm (53.0 inches)
Overall Length	2108 mm (83.0 inches)
Seat Height	813 mm (32.0 inches) If adjustable, lowest setting.
Power/Weight Ratio	0.2004 HP/kg
Dry Weight	149.7 kg (330.0 pounds)
Janus Gryffin 450 dimensions and frame
Seat	Sargent
Wheels	CNC machined aluminum hubs with aluminum alloy rims and stainless steel straight-pull spokes
Rear Brakes	Single disc. Single Piston caliper, Brembo
Brake Disc Diameter	220 mm (8.7 inches)
Front Brakes	Single disc. Two-piston caliper, Brembo
Rear Tyre	4.60-17
Front Tyre	2.75-21
Rear Suspension	Proprietary swing-arm with dual progressive coil-over Ikon shocks
Front Wheel Travel	140 mm (5.5 inches)
Front Suspension	Proprietary leading-link fork with dual progressive coil-over Ikon shocks
Frame	DOM tubular steel double cradle
Speed and acceleration
Top Speed	144.8 km/h (90.0 mph)
Other specs
Maintenance	Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com.
Insurance costs	Compare US insurance quotes from the nation's top providers.
Update specs	Report missing specs or required updates.
Comments	US brand.
Warranty	2-year unlimited-mileage warranty
Instruments	Digital
Lubrication system	Dry sump with gerotor pump, cartridge filter, and oil cooler
Engine type	Single cylinder, four-stroke
Model year	2025
Motorcycle name	Janus Gryffin 450

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Feet:

At 813mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2026 Janus Gryffin 450, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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