Cube developed a kid39s bike ideal for use on the road the cube kid 200 street boys bike 2017 with 7 speed shimano gear system all the safety features cube have built in make the cube kid 200 street really confidence inspirit when riding in traffic both for young riders and their parents thanks to a permanently 39on39 lighting system with safestop function young riders are always easily visible perfect for big city traffic the heat treated 6061 aluminium frame is available for