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SKU: HU7326

Onyx Fat Bike Rear Hub 12x197mm XD Driver | 7075 Aluminum, Ceramic Hybrid Bearings, 6-Bolt Disc Compatibility, Infinite Engagement, Low Rolling Resistance, Black, 32-Spoke, Made in USA

Regular price $540.01
$583.95 Sale price $540.01 Regular price
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Description
Specifications

Upgrade your fat bike's performance with the Onyx Fat Bike Rear Hub - the ultimate choice for serious riders and enthusiasts seeking durability, precision engineering, and versatile compatibility. Designed specifically for 12 x 197mm thru-axle setups, this high-performance hub features a sleek black finish and 32 drilled spoke holes for optimal strength and lightweight efficiency.

Materials & Construction:

Constructed from aerospace-grade 7075 aluminum, the Onyx Fat Bike Rear Hub offers exceptional strength-to-weight ratio, resisting corrosion and impact while maintaining a lightweight profile. The hub shell's precise machined body ensures perfect tolerances for smooth operation and durability.

Performance & Engineering:

Equipped with sprag internals for instant, silent engagement, the Onyx hub delivers near-zero lag, maximizing power transfer during climbs, sprints, and technical terrain. The sealed cartridge bearings are ceramic hybrid, reducing rolling resistance and providing longevity even in the harshest conditions, including temperatures as low as -65 F.

Components & Technology:

- Modular Freehub Unit (MFU): Accepts SRAM XD and other freehub standards, enabling quick, tool-free compatibility upgrades without replacing the entire hub.

- XDR/XD Compatibility: Fits a wide range of drivetrain setups for versatile riding styles.

- Titanium Bolts & Adjustable Preload: Ensures secure installation and optimal bearing preload for consistent performance.

- Optional Alloy Driver Upgrade: Customize weight savings and performance with an upgraded alloy driver (sold separately).

Style & Use Case:

Designed for fat bikes used in mountain biking, trail riding, and winter fat-tire adventures, this hub offers a robust yet lightweight solution for riders pushing their limits. Its sleek black aesthetic complements any bike build, combining style with functionality.

Innovative & Differentiating Features:

- Quick compatibility with multiple freehub standards via MFU for simplified maintenance and upgrades.

- Extremely low rolling resistance optimized by sprag internals and ceramic hybrid bearings.

- Durable grease formulated to perform in extreme cold conditions.

- Made in the USA with a comprehensive 5-year limited warranty for peace of mind.

Specifications:

- Axle: 12mm thru x 197mm

- Spoke Count: 32H with J-bend spoke interface

- Flange Diameter: 60mm (left and right)

- Brake Compatibility: 6-bolt disc brakes

- Weight: 557.3 grams

Maximize your fat bike's efficiency, durability, and versatility with the Onyx Fat Bike Rear Hub - engineered for performance, built for adventure. Whether conquering snow, sand, or mud, this hub ensures smooth, reliable rides season after season.

  • High-precision machined to the tightest tolerances for seamless fit and reliable performance, the Onyx Fat Bike Rear Hub ensures durability and smooth operation on rugged terrains.
  • Equipped with sprag internals for infinite points of engagement, this hub delivers lightning-fast response and silent instant engagement, making it ideal for aggressive trail riding and technical maneuvers.
  • Constructed from durable 7075 aluminum with a black anodized finish, combined with advanced ceramic hybrid bearings, this hub offers extremely low rolling resistance and extended longevity, even in extreme cold conditions down to -65 F.
  • Designed for versatile compatibility, the modular freehub unit (MFU) supports XDR and XD driver standards with an optional alloy driver upgrade, ensuring your hub can adapt to a wide range of drivetrain setups.
  • Engineered with innovative features like adjustable preload, titanium bolts, and sealed cartridge bearings, the Onyx hub provides professional-grade performance, lightweight construction, and a 5-year warranty-perfect for serious fat bike riders seeking reliability and style.
Flange Diameter, Left60
Rear Axle12mm Thru x 197mm
Flange Diameter, Right60
Cassette Body TypeSRAM XD
Center to Flange, Left47.42
Center to Flange, Right47.42
ColorBlack
Skewer IncludedNo
Bearing TypeSealed Cartridge
Weight557.3
Defined ColorBlack
Spoke InterfaceJ-Bend
Hub Drilling32
Hub/Brake Compatibility6-Bolt Disc
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Most orders placed during the workweek before 1:00 PM Eastern time ship the same day, but during peak/holiday season or depending on inventory location handling time can take up to 48 hours. If you have questions regarding shipping estimates, don't hesitate to get in touch with us before placing the order. There is a direct signature requirement for all orders over $500.

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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

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If there is ever an issue with an order we will work at warp speed to fix our mistake and make sure you never go a day without a bicycle! If you are not receiving the quality of service you need from one of our exceptionally qualified bicycle experts, tell them Ben Berman told you to tell them "Customer Loyalty" and then name your terms.

Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

“If you want to go fast, go alone, if you want to go far, go together.” -Someone Smart

Ben Berman Founder & CEO of 365 Cycles


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These were established by the members of our team and we use them every week to call out team members who have shined in one of these areas. Feel free to let us know at info@365cycles.com if someone you worked with has gone above and beyond in one of these areas. 

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