Hybrid Freecoaster & Cassette in one hub, convertible to a Cassette hub with no additional parts needed. Upgraded internals with larger slack setting comparable to a conventional Freecoaster hub. Super light weight hub (480g). MagnaDrive Magnetic Driver for increased performance and reliability. Heavy Duty 14mm heat treated axle. RSD or LSD. Includes x2 nylon hub guards. Silent. Item Specifications: Cassette Body Type: Freecoaster, Hub Drilling: 36H, Hub Spacing: 110mm, Spoke Interface: J-bend, Raw Product Weight Grams: 491g, Position: Rear, Defined Color: Purple,