Chris King Boost (ISO B) Boost 6-Bolt / Boost Centerlock (formerly ISO B)
Lists today at $310
Own a Chris King Boost (ISO B) Boost 6-Bolt / Boost Centerlock (formerly ISO B)?
Track its value in your garage, or list it for sale locally in a few taps.
What a used one is worth
New
$310
$264 to $310
Like new
$295
$250 to $310
Excellent
$279
$237 to $307
Good
$233
$198 to $256
Fair
$171
$145 to $188
For parts
$93
$79 to $102
From the current list price, adjusted for condition. Guidance from our catalog, not an appraisal.
Overview
- Brand
- Chris King
- Series
- Boost (ISO B)
- Model
- Boost 6-Bolt / Boost Centerlock (formerly ISO B)
- Type
- Hub
- Years
- up to 2026
- Current list price
- $310 (as of 2026-09)
Compatibility
- Axle
- 15x110_boost, 12x148_boost
- Freehub
- hg, micro_spline, xd
- Rotor mount
- 6_bolt, centerlock
Specifications
- Bearings
- Chris King made steel or ceramic
- Position
- pair
- Warranty
- King lifetime warranty (hubs)
- Mechanism
- RingDrive (patented), 72 simultaneously engaged points
- Axle other
- 20x110 Boost front (6 bolt front only)
- Discipline
- trail, enduro, downhill
- Flange rear
- canted flanges
- Geometry mm
- Rear 6 bolt: Flange diameter: 57.4; Center to flange ds: 23.8; Center to flange nds: 36.3; Front 6 bolt: Flange diameter: 57.4; Center to flange ds: 36.3; Center to flange nds: 27.3; Rear centerlock: Flange diameter: 57.4; Center to flange ds: 24; Center to flange nds: 36.3; Front centerlock: Flange diameter: 57.4; Center to flange ds: 35.5; Center to flange nds: 27.5
- Spoke holes
- 24, 28, 32
- Colors count
- 11
- Spoke hole note
- 6 bolt: 28 and 32 hole; centerlock: 24, 28 and 32 hole
- Engagement points
- 72
Boost spacing successor to ISO. Sold as "ISO B" (rear listed at 460 USD in July 2019) and now as Boost 6-Bolt; centerlock versions were added to the store in early 2021. Launch year and launch price not documented (msrp_usd null). Chris King store prices: steel bearings in standard colors are the lowest; ceramic bearings and some special colors cost more. Price labels fixed 2026-09-27: price_basis changed from pair to each because the maker sells front and rear hubs singly and list_price_usd ($310) is one front hub, the lowest priced single hub.