Frame: Aluminum BMX bike frame is strong and lightweight to improve speed and handling; stitched ATB seat and Kraton grips provide maximum comfort so you can focus on the ride; Designed for ages 5 years to adult with a rider height of 44 inches and tallerDrivetrain: 3 piece steel crank with 44T chainring provides a strong platform for freestyle BMX riding; 44/16 gearing; chain tensioner keeps the chain tight during aggressive ridingStyle: Awesome BMX race styling with sleek matte black paint makes the Enigma the envy of the neighborhood; the Enigma is ready to take on the sidewalk, dirt track, or parkWheels: Enigma has 20 x 1.95 tires paired with aluminum alloy single-wall rims; it s a strong platform for BMX racing while the lighter weight improves handling and speedBrakes: Linear pull V-brake on the rear wheel offers excellent speed control and low maintenance