Coming in at 125 cubic centimeters displacement, [Keith Harlow]’s fuel injected masterpiece isn’t too far from the size of some motor scooter engines. We doubt the local Vespa club would look ...

Japanese bike maker Yamaha is working on a Series Parallel Hybrid Electric Vehicle technology that could be deployed in ...

Further proof of this truth comes by way of Taiwanese scooter manufacture PGO, which has partnered up with RCV Engine Ltd. of the U.K. The two firms are working on rotary valve technology for ...

Yamaha revealed a hybrid motorcycle engine system it's working on, plonked in a maxi scooter prototype. It could spell an interesting new direction for the Japanese two-wheeler giant to explore if it ...