FMOSER RIVAL AXS IS REVOLUTIONARY 2IN1 BIKE. SUPPLIED WITH 3 WHEELS (ONE REAR WITH MOTOR AND ONE REAR WITHOUT MOTOR) IS A LIGHTWEIGHT DUAL MODE BIKE. YOU CAN CHANGE THE CONFIGURATION OF THE BIKE ONLY IN 3 MINUTES EQUIPPED WITH FSA HM1 REAR HUB MOTOR - FULLY CONNECTED - 250WH INTEGRATED BATTERY AND POSSIBILITY TO APPLY RANGE EXTENDER ALSO THE BATTERY CAN BE REMOVED QUICKLY AND THE BIKE BECOME A CLASSIC GRAVEL BIKE SCROLL THE PHOTOS TO SEE COMPLETE SPECS