Just weeks after revealing they’ve designed a petrol-electric ... engine takes over for faster running. Described as a “plug-in hybrid system intended for installation on big bikes”, Yamaha ...

Could this tech eventually find its way to bigger bikes ... motor (since it’s directly connected to the crankshaft), and it ...

Electric bicycles or e-bikes have a motor that kicks in when you need some extra power ... If you want to just use it for mountain biking , there's an e-bike for that too. There's even a hybrid option ...

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