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SKU: HU4821

SRAM 900 Rear Bicycle Hub | 28H Black Drilled for 6-Bolt Disc Brake | Compatible with QR 135mm & 12x142mm Thru-Axles | Sealed Cartridge Bearings & XDR/XD Cassette Body | Optimized Spoke Geometry & Quick Engagement for Mountain & Gravel Bikes

Regular price $212.68
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Description
Specifications

Upgrade your mountain bike or cyclocross setup with the SRAM 900 Rear Hub - a high-performance, durable, and versatile hub engineered for demanding riders. Designed for both trail and cross-country riding, this hub combines innovative technology and precise engineering to deliver quick engagement, reliable durability, and sleek style.

Materials & Construction

Constructed with a robust black anodized aluminum body, the SRAM 900 Rear Hub offers lightweight strength and corrosion resistance. Its sealed cartridge bearings ensure smooth operation and longevity, even in challenging riding conditions. The included quick-release (QR) axle for 135mm spacing and optional 12mm thru-axle (x 142mm spacing) provide compatibility across various frame standards.

Performance & Engineering

Featuring SRAM's renowned Double Time four-pawl mechanism, this hub delivers rapid power transfer with aggressive, quick engagement, ideal for technical climbs and rapid accelerations. The angled flange design optimizes spoke geometry, enhancing wheel durability and responsiveness. Whether you're tackling steep descents or sprinting, this hub ensures reliable performance at every turn.

Components & Technology

Compatible with SRAM's XD and XDR cassette bodies, the 900 Rear Hub supports a wide range of gearing options, including modern wide-range cassettes. The included 1.8mm spacer optimizes compatibility with XD-cassettes, ensuring seamless installation. The hub also features interchangeable end caps, allowing easy adaptation to different frame standards without the need for special tools.

Style & Use Case

With a sleek black finish and 28-spoke hole drillings, this hub pairs well with any wheelset design, fitting seamlessly into a variety of mountain, gravel, or cyclocross bikes. Its 6-bolt disc brake compatibility provides powerful stopping power in all conditions. Ideal for riders seeking a lightweight, high-engagement hub that combines style, reliability, and performance.

Innovative & Unique Features

- Quick engagement with durable Four Pawl mechanism

- Includes spacer for XD cassette compatibility

- Sealed cartridge bearings for all-weather performance

- Interchangeable end caps for versatile frame compatibility

- Optimized spoke flange design for enhanced wheel build durability

Take your bike's drivetrain to the next level with the SRAM 900 Rear Hub - engineered for serious riders who demand speed, strength, and reliability on every trail or circuit. Upgrade your wheelset today and experience the difference.

  • High-precision SRAM 900 Rear Hub with Quick-Release x 135mm and 12 x 142mm axle options for versatile mountain biking and gravel riding.
  • Constructed with durable sealed cartridge bearings to ensure smooth rotation and long-lasting performance in rugged cycling conditions.
  • Features a robust Double Time four-pawl engagement mechanism delivering instant power transfer and quick acceleration, ideal for technical climbs and rapid descents.
  • Compatible with SRAM XD and XDR cassette bodies, including a 1.8mm spacer for seamless integration with high-performance 12-speed drivetrains.
  • Designed with angled flanges and optimized spoke geometry for enhanced wheel strength, stability, and efficient power transfer across varied terrains.
Flange Diameter, Left58
Rear AxleQR x 135mm
Rear Axle12mm Thru x 142mm
Flange Diameter, Right60
Cassette Body TypeSRAM XD
Cassette Body TypeSRAM XDR
Center to Flange, Left34.25
Center to Flange, Right20.5
ColorBlack
Skewer IncludedYes
Bearing TypeSealed Cartridge
Weight275
Defined ColorBlack
Spoke InterfaceJ-Bend
Hub Drilling28
Hub/Brake Compatibility6-Bolt Disc
Shipping
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We pride ourselves on our ability to ship and deliver your gear with excessive speed! We ship from 22 locations throughout the United States and most orders will arrive in 3 days or less with Free Shipping on orders over $75!

The nitty gritty, for specific delivery timelines please pay attention to the delivery timelines on the product pages and the time frame estimated in the carts. If you need a part by a specific day, please contact us by chat, phone, or

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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.

We provide the you the ability to utilize multiple shipping & billing addresses, based upon what fits your current needs. However you are responsible to maintain and update any new address changes, as 365 Cycles will not be held liable for orders being shipped to an incorrect address.

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If you need to return your order please email us at info@365cycles.com, call us at 603-968-5797, or use the live chat on our site.

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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!

Living an active lifestyle is just that, a lifestyle that never goes away and our goal is to always exceed your expectations so we can take this lifelong journey together. We strive to have the parts you need, at competitive prices with unmatched shipping speeds!

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


Company Core Values: 

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. 

Customer Loyalty

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You Control the Outcome

If it is to be, it’s up to me" You are personally responsible for controlling the outcome.

Seek Understanding

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Progress Not Perfection

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Will to Win

Customers, 365 Team, Partners, all need the will to win. Bring the Will to Win to every conversion.

Keep Moving

Move the body, move the mind, and remove any hurdles to achieving an active lifestyle.

Do the Right Thing:

Doing the right thing is more important than doing the thing right.

Stronger together:

If you want to go fast, go alone, if you want to go far, go together. Get your team involved and become stronger together.

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