Beginning Rider Design - The Crossea 20K is a great first BMX bike for young riders that offers everything a beginning rider needs to hit the streets! Suggested rider height is 4'3" - 5'4". Durable Frame - The frame is made from strong Hi-Ten steel to give riders reliable support and long-lasting comfort and is perfect for the street, park or trails with 19.5" top tube length. Easy to Ride - The drivetrain features 165 mm one-piece crank with a 36T chainring. Front and rear aluminum brakes and Hand-brake levers provide precision speed control. And a 720° rotor that allows you to turn the handlebar completely which makes the riding more entertaining. Reliable Wheelset - The wheelset features 20" x 2.35" tires mounted on aluminum single wall 36H rims with 3/8" female axle front hub and 16T cog sealed bearing cassette rear hub. 4 cool BMX pegs are included. Easy to Assemble - 85% of the bike is assembled and comes with assembly tools. It's backed by a limited life time warranty.