A conversion kit that swaps the freehub body on a Chris King ISO B or Centrelock mountain rear hub with twin-bearing axles, complete with axle, driveshell and adjusting clamp for a plug-and-play swap. Available in the freehub body listed below.

Highlights

  • Complete kit: axle, driveshell, adjusting clamp and driveshell internals
  • Converts to Shimano HG, Shimano Microspline or SRAM XD (ceramic on one option)
  • Plug-and-play swap onto the existing hub shell

Installation

Needs a T10 Torx and Park Tool FR-1.3 (or equivalent); refer to Chris King's Boost Centrelock service video for driveshell removal and installation.

Compatibility & fit

Fits Chris King ISO B and Boost Centrelock mountain rear hubs with twin-bearing axles. If your hub has a needle-bearing axle and driver instead, it needs the separate Twin-Bearing Conversion Kit first, not this kit.

Sizes & options

OptionWhat it is
Shimano HG Twin BearingConverts to Shimano HG cassette compatibility
SRAM XD Twin Bearing CeramicConverts to SRAM XD with a ceramic twin-bearing axle
SRAM XD Twin BearingConverts to SRAM XD cassette compatibility
This is a spare or service part rather than an assembled hub, so Chris King covers it against manufacturing defects rather than under the assembled-hub King Lifetime Warranty; Australian Consumer Law guarantees also apply. For warranty support, return the product to Tune Cycles and we'll manage the claim with Chris King's Australian distributor.
  • Complete kit: axle, driveshell, adjusting clamp and driveshell internals
  • Converts to Shimano HG, Shimano Microspline or SRAM XD (ceramic on one option)
  • Plug-and-play swap onto the existing hub shell
FitsChris King ISO B and Boost Centrelock mountain rear hubs with twin-bearing axles
Freehub body optionsShimano HG; SRAM XD Ceramic; SRAM XD
Tools neededT10 Torx, Park Tool FR-1.3 or equivalent
SKU SCV-P-11798
Brand Chris King