Industry Nine Hydra Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Purple 32H Spindle Interface Type-SRAM/TruVativ GXP Head dimensions: 9

Head dimensions: 9

5"/ 29" A3

No Wolf Tooth bolts available for Plus size bike applications with the Surly OD crankset (see compatibility notes above)

Deluxe C1+/Super Deluxe C1+ description linear XL air can upgrade kit

Industry Nine Hydra Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Purple 32H Spindle Interface Type-SRAM/TruVativ GXP Head dimensions: 9Industry Nine Hydra Classic Rear Hub 12 x 148mm 6 Bolt Micro Spline Purple 32H. Industry Nine Hydra Classic hubs are the heart of your wheelset everything revolves around them literally. Every Classic Hydra hub is made start to finish in Asheville NC. From turning and milling bar stock 7075 T6 aluminum for shells axles and encaps wire EDM cutting A2 tool steel for pawls and driverings to in house anodization lab every step of design engineering