{"product_id":"industry-nine-hydra-classic-mtn-hubset-28h-32h-20x110-boost-12x142-6-bolt-hg-black","title":"Industry Nine Hydra Classic MTN Hubset - 28h\/32h | 20x110 Boost \/ 12x142 | 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 hubset is built in a \u003cstrong\u003emixed-drilling 28-hole front and 32-hole rear configuration\u003c\/strong\u003e in stealth black, designed for a 20x110mm Boost front axle paired with a 12x142mm thru-axle rear, ISO 6-bolt rotor mounting on both hubs, and a Shimano HG (HyperGlide) freehub body for 8 through 11-speed cassettes. The asymmetric spoke count is a deliberate choice from custom wheel builders: 32h at the rear handles the higher torque and impact loads from the drive side and braking, while 28h at the front saves rotating mass where the loads are lower. The 20mm Boost front with 12x142 rear is the right setup for older trail and enduro frames that predate 12x148 Boost rear spacing. MPN: H2MBBARB1.\u003c\/p\u003e","brand":"Industry Nine","offers":[{"title":"Default Title","offer_id":52377753747768,"sku":null,"price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8435\/3592\/files\/industry-nine-hydra-classic-mtn-hubset-mixed-black-1.jpg?v=1778876833","url":"https:\/\/dialedcyclinglab.com\/products\/industry-nine-hydra-classic-mtn-hubset-28h-32h-20x110-boost-12x142-6-bolt-hg-black","provider":"Dialed Cycling Lab","version":"1.0","type":"link"}