Diggler - Alpha Dawg - Mountain/Dog Scooter (Black, Silver) Oversized Aluminum Skateboard Platform Dual Position Drop Out,20" Front and Rear Wheel Size,Heat Treated 6061 Aluminum Frame Front and Rear Mountain Bike Brakes (linear pull) Sealed Cassette Bearing Hubs, Double Walled Rims,Kenda Kinetics 2.35" Wide Tires Spinner Grind 320 Suspension Fork,45" Handlebar Height