Hubs

—$311

Boost front hubs are designed as precision mountain tools. Featuring a one-piece axle to provide a stiff hub with rail accurate steering. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra-low drag. Wide flange placement Fits 110x15mm Boost spacing Easily serviceable with a T10 Torx and pick or pen knife Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Color Matte Black Defined Color Black Front Axle 15mm Thru x 110mm Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Spoke Interface J-Bend Chris King Boost Front Hub Front Hub UPC: 841529201383

by Chris King

—$311

Boost front hubs are designed as precision mountain tools. Featuring a one-piece axle to provide a stiff hub with rail accurate steering. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra-low drag. Wide flange placement Fits 110x15mm Boost spacing Easily serviceable with a T10 Torx and pick or pen knife Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Color Black Defined Color Black Front Axle 15mm Thru x 110mm Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Spoke Interface J-Bend Chris King Boost Front Hub Front Hub UPC: 841529202915

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano HG Cassette Body Type Shimano HG 11/12-Speed Road Color Black Defined Color Black Hub Drilling 32 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529244687

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XD Color Matte Black Defined Color Black Hub Drilling 28 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529251593

by Chris King

—$311

Boost front hubs are designed as precision mountain tools. Featuring a one-piece axle to provide a stiff hub with rail accurate steering. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra-low drag. Wide flange placement Fits 110x15mm Boost spacing Easily serviceable with a T10 Torx and pick or pen knife Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Color Matte Jade Defined Color Green Front Axle 15mm Thru x 110mm Hub Drilling 28 Hub/Brake Compatibility 6-Bolt Disc Spoke Interface J-Bend Chris King Boost Front Hub Front Hub UPC: 841529275360

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XD Color Black Defined Color Black Hub Drilling 28 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529244502

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano HG Cassette Body Type Shimano HG 11/12-Speed Road Color Black Defined Color Black Hub Drilling 24 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529244656

by Chris King

—$311

Boost front hubs are designed as precision mountain tools. Featuring a one-piece axle to provide a stiff hub with rail accurate steering. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra-low drag. Wide flange placement Fits 110x15mm Boost spacing Easily serviceable with a T10 Torx and pick or pen knife Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Color Matte Black Defined Color Black Front Axle 15mm Thru x 110mm Hub Drilling 28 Hub/Brake Compatibility 6-Bolt Disc Spoke Interface J-Bend Chris King Boost Front Hub Front Hub UPC: 841529201376

by Chris King

—$311

Boost front hubs are designed as precision mountain tools. Featuring a one-piece axle to provide a stiff hub with rail accurate steering. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra-low drag. Wide flange placement Fits 110x15mm Boost spacing Easily serviceable with a T10 Torx and pick or pen knife Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Color Black Defined Color Black Front Axle 15mm Thru x 110mm Hub Drilling 28 Hub/Brake Compatibility 6-Bolt Disc Spoke Interface J-Bend Chris King Boost Front Hub Front Hub UPC: 841529218640

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano Micro Spline Color Matte Jade Defined Color Green Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529216707

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano HG Cassette Body Type Shimano HG 11/12-Speed Road Color Matte Jade Defined Color Green Hub Drilling 32 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529276138

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XD Color Matte Jade Defined Color Green Hub Drilling 28 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529276053

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XDR Color Matte Jade Defined Color Green Hub Drilling 32 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529276152

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XD Color Matte Jade Defined Color Green Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529276107

by Chris King

—$311

Light weight hub body and disc brake rotor mount. King in-house made bearings use surgical steel races machined at the same time to ensure a perfectly matched inner and outer race. Easily serviceable and completely re-buildable 5-Year warranty Item Specifications Bearing Type Sealed Cartridge Color Matte Jade Defined Color Green Front Axle 12mm Thru x 100mm Hub Drilling 28 Hub/Brake Compatibility Center-Lock Disc Spoke Interface J-Bend Chris King R45D Front Hub Front Hub UPC: 841529275414

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XDR Color Matte Jade Defined Color Green Hub Drilling 28 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529275636

by Chris King

—$311

Light weight hub body and disc brake rotor mount. King in-house made bearings use surgical steel races machined at the same time to ensure a perfectly matched inner and outer race. Easily serviceable and completely re-buildable 5-Year warranty Item Specifications Bearing Type Sealed Cartridge Color Matte Jade Defined Color Green Front Axle 12mm Thru x 100mm Hub Drilling 32 Hub/Brake Compatibility Center-Lock Disc Spoke Interface J-Bend Chris King R45D Front Hub Front Hub UPC: 841529275438

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano HG Cassette Body Type Shimano HG 11/12-Speed Road Color Matte Jade Defined Color Green Hub Drilling 28 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529275612

by Chris King

—$311

Boost front hubs are designed as precision mountain tools. Featuring a one-piece axle to provide a stiff hub with rail accurate steering. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra-low drag. Wide flange placement Fits 110x15mm Boost spacing Easily serviceable with a T10 Torx and pick or pen knife Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Color Matte Jade Defined Color Green Front Axle 15mm Thru x 110mm Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Spoke Interface J-Bend Chris King Boost Front Hub Front Hub UPC: 841529275544

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XDR Color Matte Jade Defined Color Green Hub Drilling 24 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529275513

by Chris King

—$311

Light weight hub body and disc brake rotor mount. King in-house made bearings use surgical steel races machined at the same time to ensure a perfectly matched inner and outer race. Easily serviceable and completely re-buildable 5-Year warranty Item Specifications Bearing Type Sealed Cartridge Color Matte Jade Defined Color Green Front Axle 12mm Thru x 100mm Hub Drilling 24 Hub/Brake Compatibility Center-Lock Disc Spoke Interface J-Bend Chris King R45D Front Hub Front Hub UPC: 841529275391

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano Micro Spline Color Matte Black Defined Color Black Hub Drilling 28 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529251579

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano Micro Spline Color Black Defined Color Black Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529251517

by Chris King

—$621

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XD Color Matte Black/Gold Defined Color Black Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529245394

by Chris King

—$621

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano Micro Spline Color Matte Black/Gold Defined Color Black Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529245370

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano Micro Spline Color Black Defined Color Black Hub Drilling 28 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529244465

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano HG Cassette Body Type Shimano HG 11/12-Speed Road Color Black Defined Color Black Hub Drilling 28 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529244670

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XD Color Matte Black Defined Color Black Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529251654

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XDR Color Black Defined Color Black Hub Drilling 28 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529244694

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type Shimano Micro Spline Color Matte Black Defined Color Black Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529251630

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XDR Color Black Defined Color Black Hub Drilling 24 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529244663

by Chris King

—$579

R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and legendary made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the superior responsiveness of our RingDrive engagement system when you put the power down. Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement Easily serviceable and completely re-buildable with our R45 Hub Service Tool Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XDR Color Black Defined Color Black Hub Drilling 32 Hub/Brake Compatibility Center-Lock Disc Rear Axle 12mm Thru x 142mm Skewer Included No Spoke Interface J-Bend Chris King R45D Rear Hub Rear Hub UPC: 841529244700

by Chris King

—$579

Boost rear hubs are designed as precision mountain tools. Featuring one-piece solid axles to provide a stiff hub that will help your suspension perform better and drive every watt of power into the dirt. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and a threaded driveshell seal ring. Canted flanges for stronger wheel builds Patented RingDrive system with 72 simultaneously interfaced points of contact for unmatched hub engagement Easily serviceable with a T10 Torx and pick or pen knife Specifically designed for "BOOST" 148mm x 12mm axle standard Engineered, manufactured, and assembled in Portland, Oregon USA with King Lifetime Warranty Item Specifications Bearing Type Sealed Cartridge Cassette Body Type SRAM XD Color Black Defined Color Black Hub Drilling 32 Hub/Brake Compatibility 6-Bolt Disc Rear Axle 12mm Thru x 148mm Skewer Included No Spoke Interface J-Bend Chris King Boost Rear Hub Rear Hub UPC: 841529251531

by Chris King