{"product_id":"industry-nine-hydra2-mtb-rear-hub-classic-iso-6-bolt-28-hole","title":"Industry Nine HYDRA2 MTB Rear Hub (Classic) – ISO 6‑Bolt – 28 Hole","description":"\u003cp\u003eThe \u003cstrong\u003eIndustry Nine HYDRA2 Classic rear hub\u003c\/strong\u003e is engineered for riders who want a premium \u003cstrong\u003eMTB rear hub\u003c\/strong\u003e that stays smooth, engages instantly, and survives seasons of hard riding. This version is the \u003cstrong\u003e28‑hole\u003c\/strong\u003e, \u003cstrong\u003eISO 6‑bolt\u003c\/strong\u003e model in \u003cstrong\u003eBoost 12×148\u003c\/strong\u003e spacing with an \u003cstrong\u003eXD driver\u003c\/strong\u003e—a popular choice for modern SRAM MTB drivetrains and performance wheel builds.\u003c\/p\u003e\u003cp\u003eHYDRA2 is a full redesign focused on long‑term durability and consistent performance under real trail conditions. A \u003cstrong\u003e65% thicker axle\u003c\/strong\u003ehelps manage stress more effectively, while \u003cstrong\u003elarger 6903 bearings\u003c\/strong\u003e and a redesigned sealing system are intended to keep grit, mud, and water away from the bearing surfaces that wear prematurely. The hub also features a \u003cstrong\u003ebearing preload system\u003c\/strong\u003e designed to remain consistent regardless of axle clamping differences, making it a strong option for riders who frequently swap wheels, travel with bikes, or ride in variable conditions.\u003c\/p\u003e\u003cp\u003eUnder the hood, HYDRA2 improves the hub’s ability to handle high torque. \u003cstrong\u003eLarger 5.5 mm pawl pockets\u003c\/strong\u003e are designed to dissipate force more effectively over time, helping prevent wear at the engagement interface. The \u003cstrong\u003edrivering material\u003c\/strong\u003e is tougher and each pawl adds an extra tooth, supporting the higher torque loads found in aggressive riding and powerful \u003cstrong\u003ee‑MTB\u003c\/strong\u003e applications. The result is a hub intended to shrug off sustained abuse while staying crisp and quiet.\u003c\/p\u003e\u003cp\u003eOn performance, HYDRA2 delivers a rapid \u003cstrong\u003e0.41° engagement\u003c\/strong\u003e, giving you fast pickup when ratcheting through technical climbs, powering out of corners, or accelerating hard on enduro stages. It’s also designed with \u003cstrong\u003esignificantly reduced coasting drag\u003c\/strong\u003e compared to the previous generation—so it spins more freely when you’re descending or rolling between efforts.\u003c\/p\u003e\u003cp\u003eFor riders and workshops in \u003cstrong\u003eBrisbane, Queensland and across Australia\u003c\/strong\u003e, this hub is a standout choice for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ecustom \u003cstrong\u003ewheel builds\u003c\/strong\u003e (28H)\u003c\/li\u003e\n\u003cli\u003etrail and enduro upgrades\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee‑bike\u003c\/strong\u003e drivetrain builds that demand torque handling\u003c\/li\u003e\n\u003cli\u003eriders wanting a hub that’s serviceable and built for long‑term ownership\u003c\/li\u003e\n\u003cli\u003epairing with Industry Nine’s broader wheel ecosystem (including direct‑thread hub shells and I9 spoke systems, where applicable)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eKey Specifications (as listed)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiscipline:\u003c\/strong\u003e MTB (trail \/ enduro \/ e‑MTB \/ DH)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub type:\u003c\/strong\u003e Rear hub, Classic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpoke count:\u003c\/strong\u003e 28 hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor mount:\u003c\/strong\u003e ISO \u003cstrong\u003e6‑bolt\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub spacing:\u003c\/strong\u003e \u003cstrong\u003e12×148 Boost\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreehub \/ driver:\u003c\/strong\u003e \u003cstrong\u003eXD driver\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eNotable Engineering Highlights (as provided)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e65% thicker axle to better dissipate stress\u003c\/li\u003e\n\u003cli\u003eLarger \u003cstrong\u003e6903 bearings\u003c\/strong\u003e with updated labyrinth-style sealing to keep out contaminants\u003c\/li\u003e\n\u003cli\u003eBearing preload design intended to remain consistent across axle tightness variation\u003c\/li\u003e\n\u003cli\u003e5.5 mm pawl pockets designed to dissipate forces more effectively over long use\u003c\/li\u003e\n\u003cli\u003eTougher drivering and extra tooth per pawl to handle higher torque, including e‑bike loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.41° engagement\u003c\/strong\u003e for rapid pickup\u003c\/li\u003e\n\u003cli\u003eReduced coasting drag compared to the previous Hydra generation (claimed 60% reduction)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Industry Nine","offers":[{"title":"28 \/ Black","offer_id":47257210159275,"sku":null,"price":889.9,"currency_code":"AUD","in_stock":true},{"title":"28 \/ Silver (contact for availability)","offer_id":47257210192043,"sku":null,"price":889.9,"currency_code":"AUD","in_stock":true},{"title":"28 \/ Blue (contact for availability)","offer_id":47257210224811,"sku":null,"price":889.9,"currency_code":"AUD","in_stock":true},{"title":"28 \/ Gold (contact for availability)","offer_id":47257210257579,"sku":null,"price":889.9,"currency_code":"AUD","in_stock":true},{"title":"28 \/ Purple (contact for availability)","offer_id":47257210290347,"sku":null,"price":889.9,"currency_code":"AUD","in_stock":true},{"title":"28 \/ Red (contact for availability)","offer_id":47257210323115,"sku":null,"price":889.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6402\/5771\/files\/5758705831.webp?v=1782022593","url":"https:\/\/pedalpassion.cc\/products\/industry-nine-hydra2-mtb-rear-hub-classic-iso-6-bolt-28-hole","provider":"My Store","version":"1.0","type":"link"}