They have hollow

Built from extruded aluminium and CNC machined to refine the shape

reduced the weight and gave it a more modern slim body profile all while keeping that concave shape

fork and bars making the whole bike rigid

2 cable guides and an adjustment screw

Stay Strong PWR Pro XXL Race BMX Bike Colour:Gloss Grey They have hollowThe PWR Series complete bikes are Stay Strong's first range of race ready bikes. Ready to Race straight out of the box, the PWR Series has everything a rider needs to become a fully fledged BMX racer. Stay Strong understand riders racers needs and every part, detail and logo placement has been thoroughly thought out. With a race winning geometry, disc specific frame, Stay Strong branded bars, cranks, rims, seat and forks and an integrated headset,