SUNDAY CYCLONE FREECOASTER: A traditional clutch-based coaster hub design that eliminates all of the problematic elements on ordinary hubs and only keeps the parts that work. A new, super-strong axle, bearing configuration, and drag mechanism design stops the need for constant repairs.This hub features a simplified internal slack adjustment. Using only a 2.5mm hex key, simply loosen or tighten the grub screw to your desired slack, put the hub back together, and you’re back shredding.It includes a female axle with a 14mm non-drive side axle bolt and 3/8” drive side bolt with built-in 14mm adapter. This configuration is lighter and stronger than a 14mm solid male axle. The 3/8” drive side bolt provides room for an ultra-long-lasting bearing system in the driver – one of the weakest points on traditional hubs. The 14mm non-drive side bolt is incredibly strong and allows for a larger bore in the axle. Team tested and proven.