BOX COMPONENTS

Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory - it embraces range without adding complexityCompatible with standard HG style freehub bodiesUltra-wide ratio with consistent progressionDurable lightweight unibody constructionLightweight internal support disc11-50t9sp11-13-16-20-24-30-36-42-50Black

The Box Three cassette allows fine tuning the price point of the Prime 9 drivetrain by accepting a small amount of additional weightSteel cog and spider construction for improved durabilityUltra-wide ratio with consistent progressionCompatible with HG freehub bodiesIntended for use with Box Prime 9 drivetrains only - may not be compatible with other 9 speed drivetrains11-46t9sp11-13-15-18-22-28-34-40-46Black

The Box Three E-Bike Cassette offers high gears with more teeth to withstand the rigors of modern E-Bike ridingE-Bike optimized, steel cog and spider construction for improved durabilityUltra-wide ratio with consistent progressionCompatible with HG freehub bodiesIntended for use with Box Prime 9 drivetrains only - may not be compatible with other 9 speed drivetrains12-46t9sp12-14-16-18-22-28-34-40-46Black

The Box Three E-Bike Cassette offers high gears with more teeth to withstand the rigors of modern E-Bike ridingE-Bike optimized, steel cog and spider construction for improved durabilityUltra-wide ratio with consistent progressionCompatible with HG freehub bodiesIntended for use with Box Prime 9 drivetrains only - may not be compatible with other 9 speed drivetrains12-50t9sp12-14-16-18-22-28-34-42-50Black

Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory - it embraces range without adding complexityAdding an extra tooth to each of the three highest gears provides increased durability and decreased wear for the heavier loads of E-Bike ridingCompatible with standard HG style freehub bodiesUltra-wide ratio with consistent progressionSteel Stamped cogs pinned to lightweight spidersE-Bike optimized 12 tooth cassette gearing12-50t9sp12-14-16-18-22-28-34-42-50Black ...

 Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory - it embraces range without adding complexity Compatible with standard HG style freehub bodies Ultra-wide ratio with consistent progression Cold rolled steel and aluminum construction Cogs pinned to lightweight spiders 11-50t 9sp 11-13-16-20-24-30-36-42-50 Black

 Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory - it embraces range without adding complexity Compatible with standard HG style freehub bodies Ultra-wide ratio with consistent progression Cogs pinned to lightweight spiders 11-50t 9sp 11-13-15-18-22-28-34-42-50 Black