Pretty wild machine. I pumped up the tires and took it for a short ride. With the seat fully up, I could feel my hips trying to pop out of the sockets. So no chance of me riding it anymore. A separate lever on the bars releases the main valve that frees the shock to be set any height. 20 inch front wheel. 16 inch rear. 7 speed gearing. The Seat has "hidden" storage but it takes a good sized screw driver to pop it open.