Grid 180 BMX Freestyle Bike, 20-Inch Wheels, Single Speed, BlackShow off your mad skills with the Grid 180 . The Grid 180 features a BMX freestyle frame thats perfect for the bike park or riding around the neighborhood. The frame also includes a 4-bolt alloy stem for added clamp security. The single speed drivetrain features 25/9T micro-drive gearing, just like pro riders use. Plus, this bike includes 4 freestyle pegs and a brake cable rotor that allows for awesome 360-degree bar spins. Take on the challenge with the Grid 180.