{"id":252984,"date":"2026-07-14T18:14:10","date_gmt":"2026-07-14T18:14:10","guid":{"rendered":"https:\/\/sports.runfyers.com\/index.php\/2026\/07\/14\/boyd-cycling-says-its-new-sixtus-gravity-mtb-hubs-are-durable-fast-engaging-and-low-drag\/"},"modified":"2026-07-14T18:14:10","modified_gmt":"2026-07-14T18:14:10","slug":"boyd-cycling-says-its-new-sixtus-gravity-mtb-hubs-are-durable-fast-engaging-and-low-drag","status":"publish","type":"post","link":"https:\/\/sports.runfyers.com\/index.php\/2026\/07\/14\/boyd-cycling-says-its-new-sixtus-gravity-mtb-hubs-are-durable-fast-engaging-and-low-drag\/","title":{"rendered":"Boyd Cycling Says Its New Sixtus Gravity MTB Hubs are Durable, Fast-Engaging, and Low-Drag"},"content":{"rendered":"

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Today, Boyd Cycling<\/a> introduces a new gravity hub platform, the Sixtus MTB hub. The Sixtus replaces the brand\u2019s Tripel hub and is claimed to be better in every way, including faster engagement, lower drag, and<\/em> enhanced durability. Designed to provide near-instant 0.5-degree engagement without the drag often associated with fast engagement hubs, Boyd says \u201cthe Sixtus was engineered to stay fast when you\u2019re off the gas<\/em>.\u201d It’s also been designed to handle the abuse of gravity-oriented riding and is e-bike rated, too.<\/p>\n

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\u201cThe Sixtus Hub is built for Chaos. We made it for riders who smash into rock gardens, land sideways, pedal through compressions, and expect their equipment to respond instantly every single time<\/em>. We wanted the fastest engagement possible, and simply refused to accept the drag and harshness that usually comes with it.<\/em>\u201d<\/p>\n

-Boyd Johnson, Chief Innovation Officer and Founder at Boyd Cycling.<\/p>\n<\/blockquote>\n

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Boyd Cycling says its Sixtus hubs have been tested and proven on the World Cup EDR circuit, including by Bex Barona in La Thuile.<\/figcaption><\/figure>\n

Sixtus MTB Hub Details<\/h2>\n

Like the Tripel hub that came before it, the Sixtus uses a 102-tooth driver ring paired with six pawls. Unlike the Tripel hub, where all of the pawls engage simultaneously, the Sixtus has a new steel phasing ring, which staggers the pawl engagement. This phased design creates a whopping 612 points of engagement and just 0.5 degrees between those points. Boyd says, \u201cThe result is engagement \u2018now\u2019 without the excessive drag common among high-engagement hubs.<\/em>\u201d<\/p>\n

Additionally, this steel phasing ring is claimed to result in improved load distribution and increased durability to earn its e-bike rating. Adding to that, Boyd says the Sixtus also features wider pawls, which increase surface contact between the pawls and driver ring to boost strength and durability under heavy torque.<\/p>\n

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Sixtus freehub comparison: Aluminum\/simultaneous (left), steel\/staggered (right)<\/figcaption><\/figure>\n

Knowing that not all riders want 0.5-degree engagement, Boyd says it also developed a lightweight aluminum freehub body without<\/em> the steel phasing ring. This optional freehub allows all of the pawls to engage simultaneously for still-pretty-quick 3-degree engagement, while also reducing weight by ~35 grams.\u00a0<\/p>\n

And because 20mm thru axles are still a thing in gravity riding, Boyd Cycling designed the front hub with versatility in mind. The Sixtus front hub can convert from 15x110mm Boost to 20x110mm DH with a simple end cap swap. On that note, the Sixtus hubs are available in Boost spacing, a 6-bolt brake rotor interface, and for use with J-bend spokes only.\u00a0<\/p>\n

\"studio<\/a><\/figure>\n

Sixtus MTB Hub Specs<\/h3>\n