EC-03 Electric Motors for MotoGP From Yamaha. Yamaha handed electric motorcycle to the EC-03 as the promoter Dorna MotoGP as a cooperative agreement. This scooter-shaped motorcycle fleet complement of two-wheeled vehicles in the paddock during a series of races in 2011 which had previously been donated through JogRR Yamaha.
This scooter uses lithium-ion battery 50 V, produced by Sanyo to move the Yamaha Integrated Power Unit (YIPU). YIPU it consists of a DC motor, control unit, planetary gear transmission, and brake drums, all together moving the wheels measuring 12 inches.
According to Yamaha, YIPU have the power 1.9 HP with a maximum torque of 9.6 Nm. Power claimed 43 km home range in the full battery condition with a top speed of 30 km per hour on flat roads for riders weighing 55 kg.
source : kompas.com
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