There is a growing movement to replace the fuel used in motorcycles and cars that support urban mobility with hydrogen. The hydrogen-fueled motorcycle "H2 Buddy Porter Concept," jointly developed by Yamaha Motor Co., Ltd. and Toyota Motor Corporation, made its world debut at the Japan Mobility Show 2025.
Hydrogen internal combustion engines emit almost no CO₂ while driving, and are therefore attracting attention as a technology that combines environmental friendliness with practicality.

About Japan Mobility Show 2025

Japan Mobility Show 2025 is one of Japan's largest mobility exhibitions, held at Tokyo Big Sight. In addition to automobiles and motorcycles, it will feature a wide range of mobility-related technologies, including robotics, AI, electrification, and hydrogen energy.

At the 2025 event"Decarbonization" and "next-generation mobility" are the main themesMany companies have announced new means of transportation and initiatives towards a sustainable society.

H2 Buddy Porter Concept technology

The "H2 Buddy Porter Concept" isA motorcycle equipped with a hydrogen-fueled internal combustion engine.

  • The rear box is equipped with four high-pressure hydrogen tanks for motorcycles developed by Toyota (capacity: approximately 23L).
  • A single full tank can travel approximately 100km
  • Hydrogen and air are mixed and burned, and the main exhaust is water.
  • Almost no CO₂ emissions

The high-pressure hydrogen tank is protected by a protective frame, ensuring impact resistance of 43.5G front to back and 63G left to right. The design assumes delivery use in urban areas and everyday transportation.

H2 Buddy Porter Concept
From the Japan Mobility Show 2025 website
The difference between hydrogen bikes and EVs
ItemHydrogen bike (internal combustion type)EV (electric)
Navigation methodHydrogen combustionMotor driven by battery power
Filling/chargingRefills in about 3 minutesCharging takes several minutes to several hours
emissionsMainly waterNo emissions
TaskStation maintenanceCharging infrastructure and battery life

Hydrogen is suitable for commercial use and long-distance travel because it can be refueled in a short time. On the other hand, EVs are quiet and easy to maintain. Each has its own advantages, so it is important to choose the right vehicle for the purpose.

Hydrogen refueling and infrastructure

Hydrogen fuel can be refueled at a hydrogen station by connecting a special nozzle and following the same procedure as gasoline refueling, which takes about three minutes.

  • Number of hydrogen stations in operation in Japan: Approximately 154 (as of 2025)
  • Gas stations: Approximately 27,000

At this stage, infrastructure development is an issue, and further expansion is necessary for widespread adoption.

Cost comparison of hydrogen and gasoline
Item水素燃料gasoline
unit priceApproximately 1,200 yen/kgApproximately 160-180 yen/L
Full-fill costApproximately 6,000 to 7,000 yenApproximately 8,000 to 9,000 yen
Emissions during drivingMainly water, almost zero CO₂Exhaust gas containing CO₂

Fuel efficiency varies depending on the vehicle and system, but at present it may be equivalent to or slightly worse than gasoline vehicles.

world trends
  • Japanese government aims to have 1,000 hydrogen stations by 2030
  • In Europe and China, hydrogen fuelling is progressing in large commercial vehicles such as buses and trucks

Hydrogen is being considered for use in a wide range of areas, including power generation, transportation, and driving, and is positioned as a core element of energy policy.

My Feelings, Then and Now
  • The "H2 Buddy Porter Concept" is a hydrogen bike demonstration model that combines environmental friendliness and practicality.
  • Refueling is quick, and the operation feels similar to that of a gasoline vehicle.
  • Infrastructure development and fuel costs are the keys to widespread adoption
  • Rather than choosing one or the other, coexistence depending on the application is realistic.

Hydrogen-fueled motorcycles have the potential to bring new options to urban mobility and logistics. However, infrastructure and cost challenges still remain. When the technology matures and society is ready, hydrogen may become the norm for motorcycles on your streets.
Thinking about how transportation will change in the future by looking at familiar means of transportation can also lead us to reexamine our own way of life.