19" front and 16" rear wheel assembly for pit pro trail dirt bike Fit 15mm Axle Front wheel comes with the 1.6 x 19 rim, 70/100-19 knobby tire, inner tube, wheel bearing Rear wheel comes with the 1.85 x 16 rim, 90/100-16 knobby tire, inner tube, wheel bearing Please note: Tire sizes vary by ride, please check your current tire and wheel sizes before placing the order