Sportbikes

2025Marine Turbine Technologies 420 RR

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The 2025 Marine Turbine Technologies 420 RR is an American superbike powered by a gas turbine. It makes 420 hp at 52,000 rpm and 678 Nm through a two-speed gearbox, running on diesel or kerosene. Carbon fibre fairings and a 34-litre tank complete it.

Capacity: Not on record
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Engine: Turbine
Gearbox: 2-speed
Dry weight: 226.8 kg
Seat height: 800 mm
Power: 420.0 HP (313.2 kW) @ 52000 RPM

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What’s new for the 2025 Marine Turbine Technologies 420 RR

vs the 2024

Spec	2024	2025
Power	420.0 HP (306.6 kW) @ 52000 RPM	420.0 HP (313.2 kW) @ 52000 RPM

Other years 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering80%

City riding25%

Daily riding20%

Touring10%

Two-up25%

Track75%

Best for: Built for spirited road riding and the occasional track day, trading some comfort for sharper performance and handling.
Built for: A sport bike from Marine Turbine Technologies; its character is strong and confident, with 420 hp on tap.
Not ideal for: Not for riders who want touring comfort, a passenger-friendly seat or off-road ability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 800mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2025 Marine Turbine Technologies 420 RR, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine

Power: 420.0 HP (313.2 kW) @ 52000 RPM
Torque: 678.0 Nm (69.1 kgf-m) @ 2000 RPM
Engine type: Turbine
Power/weight ratio: 1.8519 HP/kg (dry)
Starting: Electric
Lubrication system: Dry-sump, 3.5-qts turbine oil
Capacity:: Not on record - add it

Transmission

Gearbox: 2-speed
Transmission type: Manual

Dimensions & weight

Wheelbase: 1727 mm
Seat height: 800 mm
Dry weight: 226.8 kg
Fuel capacity: 34.00 litres
Oil capacity: 3.30 litres
Reserve fuel capacity: 6.00 litres

Chassis & suspension

Frame: Tubular aluminum alloy.
Front suspension: Inverted fork, 55 mm
Rear suspension: Mono-shock adjustable, oleo-pneumatic, Ohlins
Rake (fork angle): 27.0°

Brakes & wheels

Front brakes: Double disc. Brembo, 4 piston calipers
Front brakes diameter: 320 mm
Rear brakes: Single disc. Brembo, 4 piston calipers
Front tyre: 120/60-ZR17
Rear tyre: 200/50-ZR17

Other

Color options: Custom Colors
Comments: Diesel and Kerosene fuel. Carbon fiber fairings. MTT also offers a three-wheeled trike version of the 420RR. US company.

Specs last verified against published sources: October 2026.