Growing riders looking to build their skills can do no better than the Scan 4.0, as long as they're willing to push their limits. The Hi-Ten steel BMX frame and fork are tough and agile enough for putting in the hours at the skatepark, while the aluminum U-brake is serious about stopping power wherever you ride. The microdrive with three-piece tubular chromoly crank, 25T chainring, and 9T cassette is built to handle dedicated freestyle practice while making room for tricks. Aluminum rims with 20 by 2.35-inch tires are tough enough for catching air and coming back to Earth with ease. Get dedicated, get dirty, and really get to know the skatepark with the Mongoose Scan 4.0.