This trike has Shimano Alfine cranks, shifter and an internal 11 speed hub. Built with no deraileurs so there is no way of dropping a chain on the trails. Best suited for a person from 5 feet to 6 feet in height and will carry 250 lbs easily. Also has a basket behind the seat for carry all. This trike comes with one 36 volt battery which has a riding radius of about forty kms. Another battery would at least double the riding distance. The comfortable riding position of these trikes is superb. Thanks for reading and Happy Trails.