Industry Nine Hydra 2 Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Blue 28H MFPN=19033020819 SmartHead™ DX3 automatically adjusts to

SmartHead™ DX3 automatically adjusts to fit Presta or Schrader valves and a low profile air release button allows fine tuning of tire pressure while preventing unintended pressure release

Flare shape in drops provide for better wrist clearance forsprinting

Run time Up to 100h (headlight) and up to 100 h run time (taillight)

24x37 OB 1/2" x 2

Side and upper knee impact protection

Industry Nine Hydra 2 Classic Rear Hub - 12 x 148mm 6-Bolt Micro Spline Blue 28H MFPN=19033020819 SmartHead™ DX3 automatically adjusts toIndustry Nine Hydra 2 Classic Rear Hub 12 x 148mm 6 Bolt Micro Spline Blue 28H. Completely re engineered using insights gleaned from more than 100000 original Hydra hubs in the field Hydra 2 features a newly designed 65% thicker axle larger 6903 bearings with new labyrinth seals and enlarged pawl pockets that ensure bombproof durability under the most demanding conditions. 6 Pawl Hydra 2 Freehub Body provides a groundbreaking 870 P. O. E. Hydra 2