Chris King

Chris King ISO-B 12x148mm Boost XD 32H Rear Hub

2 in stock


370 grams
370 grams
370 grams
370 grams
370 grams
370 grams
370 grams


Revamped for 2016, the legendary Chris King ISO-B hub is leaner, stronger, and more reliable than ever. The re-shaped hub body has been slimmed down to save weight, while the flanges have been thickened for added strength. Chris King hubs have a well-earned reputation in the marketplace. Whether for their long-wearing durability or their ease of service, King hubs are a favorite of shop mechanics and tech editors the world over. But strength and durability do not come at a performance cost. King hubs are fast as any hub in the game. Even with a legendary sealing system that affords a 5-year warranty in all conditions, King hubs have rolled to numerous professional wins on and off road.

Inside the hubshells, the business transaction of putting your power to work, is where you'll find what matter most. Yes, everyone loves the colors, but it's their bearings, axles and engagement system that have earned the trust of discerning cyclists. King makes their own bearings in-house, each hand-checked for precision and built with a robust sealing system. Best of all? Service them yourself! Strong, constant diameter axles run through the bearings to the frame and fork dropouts for precise handling and stiffness under power.

Every King rear hub is powered by their patented RingDrive™ engagement system. This unique design offers instant, positive engagement that is over three times quicker than a standard 24-tooth pawl-type freehub. RingDrive™ uses 72 engagement teeth on stainless steel drive and driven rings for a system that is capable of handling torque load of over 800 ft/lbs.


  • Engineered, manufactured and assembled in Portland, Oregon USA
  • Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement
  • Legendary made-in-house bearings
  • Easily serviceable and completely re-buildable with Chris King Hub Service Tool


  • Shell Material: Aluminum
  • Drive Shell Material: Aluminum
  • Driver Type: SRAM XD
  • Spoke Type: J Bend
  • Hole Count: 32
  • Bearing Type: Sealed Cartridge
  • Disc Mount: 6 bolt
  • Axle Configuration: 12x148mm Boost
  • Intended Use: Mountain biking
  • Warranty: 5 years

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