Built around Marine Turbine Technologies's sport motorcycle platform, the 2021 Marine Turbine Technologies 420 RR features a purpose-built gas turbine configuration. In factory specification, peak output is rated at 420 HP (306.6 kW) at 52,000 rpm while maximum torque reaches 678 Nm (500.1 lb-ft) at 2,000 rpm, transferring power to the rear wheel through a 2-speed gearbox and chain final drive.
On the scales, the 420 RR measures 226.8 kg (500 lbs) dry, translating to a power-to-weight ratio of 1.85 HP/kg (0.54 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,727 mm (68 in) wheelbase engineered for planted straight-line stability. The 34-liter (9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Marine Turbine Technologies archive, this model family spans 6 indexed model years from 2018 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power-to-Weight
1.85 HP/kg (0.54 kg/HP)
Power Band Window
2,000–52,000 rpm
Standover Height
800 mm (31.5 in)
Engine
Engine TypeGas turbine
Engine DetailsRolls Royce Allison – 250-C20 Series Gas Turbine
Power420.0 HP (306.6 kW)) @ 52000 RPM
Torque678.0 Nm (69.1 kgf-m or 500.1 ft.lbs) @ 2000 RPM
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
