Check the listing for details. Jazzy electric drive Motors / gearboxes power Wheelchair 12-24VDC Robotics Robot. Condition: Used. Listed at 55.00 USD. 2 used jazzy motors / gearboxes(1 right side / 1 left side).Tested and confirmed working, Good for use on electric powered vehicles(rc lawn mower, large scale rc crawler, DIY Segway, robotics projects etc..)Brake assembly's were removed to simplify it for rc use(eliminating 2 of the 4 wires). Just wire it to the controller of your choice.Rpms are ROUGHLY 120rpm at 24vdc / 60rpm at 12vdc.They are brushed dc motors.17mm straight shaft with keyway 31mm long(1.220")PLEASE confirm these are the correct part, item, size, etc. before ordering.Please check out the pictures and feel free to ask questions you may have.-Thanks for looking.2 used jazzy motors / gearboxes(1 right side / 1 left side).Tested and confirmed working, Good for use on electric powered vehicles(rc lawn mower, large scale rc crawler, DIY Segway, robotics projects etc..)Brake assembly's were removed to simplify it for rc use(eliminating 2 of the 4 wires). Just wire it to the controller of your choice.Rpms are ROUGHLY 120rpm at 24vdc / 60rpm at 12vdc.They are brushed dc motors.17mm straight shaft with keyway 31mm long(1.220")PLEASE confirm these are the correct part, item, size, etc. before ordering.Please check out the pictures and feel free to ask questions you may have.-Thanks for looking.