The Kujira (くじら. Japanese for whale) emulates the pectoral fin of a whale. The tubercles along its edge channels water and divides it into streams. Thus reduces water resistance resulting in less drag and increases...

IPX8 waterproof battery housing system 70-cell lithium-ion battery pack 36 volts of power capable of supplying 22 amps Up to 4 hours of assisted ride time* 4 hour charge time...