Yamaha has unveiled its 2025 XMax SPHEV (Series-Parallel Hybrid Electric Vehicle) scooter concept, featuring an advanced hybrid system that blends a conventional engine with two electric motors, offering enhanced efficiency and riding flexibility.
The hybrid prototype is based on the XMax platform and combines a single-cylinder internal combustion engine with dual electric motors one integrated into the wheel drive for propulsion, the other mounted to the crankshaft, serving as a generator to recharge the battery.
Yamaha’s SPHEV technology enables multiple riding modes: a full-electric mode ideal for silent, zero-emission urban riding; a hybrid mode powering both engine and motor together for higher speeds; and a series-hybrid mode where the engine runs independently to recharge the battery.
The concept also features two “boost” modes: a Dual Boost combining the engine with the drive motor for quick acceleration, and a Triple Boost that adds the generator motor for maximum torque output.
Though still in the prototype stage, Yamaha has not confirmed whether the SPHEV system will enter mass production. However, executives suggest the technology could eventually be applied to other vehicle types, such as sport bikes and street motorcycles.
Yamaha’s SPHEV concept marks a significant stride in two-wheeler innovation, following Kawasaki’s pioneering hybrid motorcycle models. The new system offers the promise of cleaner, more efficient scootering without the drawbacks of large battery systems.
