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The ISO AB is specifically for “Boost” disc spacing forks with 110x20mm "Boost" axles. Using the larger diameter hubshell bearing the ISO AB is designed to tackle rough terrain and aggressive riding such as downhill and enduro. In an evolving landscape of axle specifications, we are confident that the “Boost” disc location is here to stay.

Chris King ISO AB front hubs are designed as precision mountain tools. We use one-piece axles to provide a stiff hub with rail accurate steering, transferring every minute adjustment you make to the trail. To thwart mud, water, and contaminants as you power through rough trails, ISO hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra low drag.

Our bearings, available in steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use.



  • Engineered, manufactured and assembled in Portland, Oregon USA
  • King Lifetime Warranty
  • Wide flange placement
  • Fits 110x20mm Boost axles
  • Legendary made-in-house LD bearings
  • Easily serviceable with a 2.5mm hex and pick or pen knife
  • Completely re-buildable with our ISO Hub Service Tool
  • Responsibly lightweight
  • Ceramic bearing upgrade available
  • Available in 28 and 32 hole spoke count

DDB1BD

Chris King ISO AB Boost Front Hub (110 X 20MM)

Availability and stock levels vary by color & specification, please check each color below for stock information.

More Details On Availability Here
Color
Black
Matte Jet
Matte Slate
Red
Silver
Matte Turquoise
Matte Mango
Gold
Two Tone
Bearing Type
Spoke Count

The ISO AB is specifically for “Boost” disc spacing forks with 110x20mm "Boost" axles. Using the larger diameter hubshell bearing the ISO AB is designed to tackle rough terrain and aggressive riding such as downhill and enduro. In an evolving landscape of axle specifications, we are confident that the “Boost” disc location is here to stay.

Chris King ISO AB front hubs are designed as precision mountain tools. We use one-piece axles to provide a stiff hub with rail accurate steering, transferring every minute adjustment you make to the trail. To thwart mud, water, and contaminants as you power through rough trails, ISO hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra low drag.

Our bearings, available in steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use.



  • Engineered, manufactured and assembled in Portland, Oregon USA
  • King Lifetime Warranty
  • Wide flange placement
  • Fits 110x20mm Boost axles
  • Legendary made-in-house LD bearings
  • Easily serviceable with a 2.5mm hex and pick or pen knife
  • Completely re-buildable with our ISO Hub Service Tool
  • Responsibly lightweight
  • Ceramic bearing upgrade available
  • Available in 28 and 32 hole spoke count
  • AVT.Bike is an authorized Chris King® dealer and proud to carry one of the largest selections of Chris King products available online and shipped anywhere in the world.
  • Chris King components including hubs, headsets and bottom brackets are available in 9 stock colors.
  • LIFETIME Warranty on all Chris King products.
  • Other colors and product options are available depending on stock levels, so if you don't see the color or exact product you are looking for please contact us.
  • If you have any technical questions at all on Chris King products please contact us and we'll be pleased to help you out!
  • All Chris King products are responsibly manufactured in Portland, Oregon, USA.