Youth/small adult sized bike. 19" frame, 26" wheels (26x1.95) Rear wheel rubs on the brakes, because the back wheel is warped due to one broken spoke. Best to replace the spoke and straighten the wheel before riding. Everything else on this bike works well. One pedal is taped but functional. No leaks in tires. Seat/handlebars were raised for our son, but he outgrew it anyway :)