High-end component maker Chris King, which has just celebrated its 50th anniversary, has launched a new SuperBoost mountain bike hubset, along with a newly designed 36-tooth freehub ratchet with 10-degree engagement.
While Centerlock is now the dominant standard to attach a disc brake rotor, Chris King’s new hub is designed for six-bolt rotors.
According to Chris King president Kirby Bedsaul, the new hubs fill a gap in the brand’s line-up: “Now we offer 6-Bolt compatibility across all of our mountain hubs. It really completes the picture for riders across the spectrum. All Chris King mountain hubsets are now available in either brake standard.”
New slower-engaging ratchet

The new hubs can be fitted with either a 72-tooth freehub ratchet or a new 36-tooth ratchet with 10-degree engagement, enabling riders to tune their engagement angle.
Chris King’s hubs have usually come fitted with the 72-tooth ratchet. But the new 36-tooth option is a response to a request from Santa Cruz Syndicate team rider and downhill world champion Jackson Goldstone for a hub with fewer points of engagement, which the brand says enables the hub to spin faster.
Bedsaul continues: “At this level, they’re searching for milliseconds, and they see this as a meaningful contribution toward that goal. Jackson won the key races last season on the prototype 36T hub, which reduces hub drag and noise significantly.”

The lower freehub noise from the 36-tooth ratchet compared to its buzzy 72-tooth ratchet is significant for downhill racers, according to Bedsaul, because it enables them to hear noise from tyres, brakes, chain and suspension better, to provide feedback on the bike’s performance.
The 36-tooth ratchet doesn’t only have fewer teeth, they’re re-engineered to reduce the contact area, which further reduces drag and enables the brand’s RingDrive 2.0 lubricant to penetrate the ratchets better.

Chris King’s RingDrive ratchet lube includes nanoparticles and is claimed to reduce friction, improve cold-weather performance and add to ratchet longevity. It also sells its newly launched Gold Grease for bearings, designed to help them spin faster, with a claimed 25% reduction in drag over its previous silver grease.
Chris King says you can retrofit the 36-tooth ratchet ring to any of its hubs made since the 1990s. It recommends the 72-tooth ring for most riders on most terrain, though, and says even its team riders still use it if there’s significant pedalling needed.
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