{"product_id":"industry-nine-hydra-classic-mtn-hubset-28h-20x110-boost-qrx141-6-bolt-hg-black","title":"Industry Nine Hydra Classic MTN Hubset - 28h | 20x110 Boost \/ QRx141 | 6-Bolt HG | Black","description":"\u003ch2\u003eWhat Makes the Industry Nine Hydra Classic MTN Hubset the Reference Standard for High-Engagement Hubs?\u003c\/h2\u003e\n\u003cp\u003eThe Industry Nine Hydra Classic MTN Hubset is the original Hydra-generation hub that put I9 on the wheel-builders' short list back in 2019, with a \u003cstrong\u003e690 points of engagement freehub (0.52 degrees between each engagement)\u003c\/strong\u003e that was a generational leap over anything else on the market when it launched. Every Hydra Classic hub is machined start to finish in I9's Asheville, North Carolina facility from 7075-T6 aluminum bar stock, with A2 tool steel pawls and drive rings wire-EDM cut in-house and anodized in their own lab. Six independently-phased pawls running on a 115-tooth drive ring deliver immediate, telepathic power transfer the moment you weight the pedals, the kind of engagement that matters most on technical climbs where every fraction of a crank rotation counts.\u003c\/p\u003e\n\u003cp\u003eThis particular hubset is a 28-hole front and 28-hole rear configuration in stealth black, built for a \u003cstrong\u003e20x110mm Boost front axle\u003c\/strong\u003e paired with a QRx141 quick-release rear, ISO 6-bolt rotor mounting on both hubs, and a Shimano HG (HyperGlide) freehub body for 8 through 11-speed cassettes. The 20mm thru-axle front is the gravity-oriented option for riders running dual crown forks, beefier single crown forks, or older 20mm-spec frames. The QR rear pairing makes this configuration ideal for older trail and all-mountain frames that predate the 12mm thru-axle standard but still want world-class engagement and I9 build quality. MPN: H2MBBBRY1.\u003c\/p\u003e","brand":"Industry Nine","offers":[{"title":"Default Title","offer_id":52377753452856,"sku":null,"price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8435\/3592\/files\/industry-nine-hydra-classic-mtn-rear-hub-black-1.jpg?v=1778876735","url":"https:\/\/dialedcyclinglab.com\/products\/industry-nine-hydra-classic-mtn-hubset-28h-20x110-boost-qrx141-6-bolt-hg-black","provider":"Dialed Cycling Lab","version":"1.0","type":"link"}