When your rides push the limits—through rock gardens, over drops, and into tight, high-speed corners—you need a rear hub that’s not only strong, but uncompromising in precision and control. The D772SB Rear Hub is purpose-built for Downhill and Freeride disciplines, engineered with advanced materials and premium mechanics to deliver relentless performance under extreme terrain and high-impact loads.
At the core of the D772SB lies its 4-fold industrial ball bearing system, a testament to high-grade engineering designed for rugged longevity. These sealed bearings operate with silky smoothness even under intense torque, offering frictionless efficiency and exceptional durability in the dirtiest, wettest, and most punishing environments. Whether you're hammering through a downhill track or bombing through freeride features, this hub ensures zero compromise in rotational integrity.
The hub body is precision CNC-machined from lightweight, high-strength aluminum, which optimizes the balance between weight savings and structural toughness. Weighing just 269 grams, the D772SB minimizes unsprung weight without sacrificing the strength necessary to handle aggressive trail abuse, hard landings, and sudden torque spikes.
It features a disc brake mount compatible with 6-bolt rotor systems, delivering powerful, consistent braking performance that gravity riders depend on. The axle design is a robust 12 mm thru axle—standard for high-end downhill builds—offering increased stiffness and alignment precision, essential for confident, high-speed cornering and landing stability.
The D772SB also accommodates 11-speed cassettes, providing broad gearing range support for both downhill racing and technical freeride ascents. The cassette-compatible freehub mechanism engages quickly and reliably under load, offering instant power transfer with every pedal stroke—a critical feature when exiting turns or accelerating out of tight switchbacks.
The hub’s flange spacing is engineered with a 74.45 mm flange distance, and bolt circle diameters of 58 / 49 mm, allowing for strong and balanced spoke bracing angles. This results in a stiffer, more responsive wheel build that’s capable of enduring the massive lateral and vertical forces encountered during big hits and high-G corners.
With a 150 mm rear axle spacing, this hub caters to downhill-specific frames that demand wide stance durability and frame compatibility, providing maximum rigidity and a stable platform for high-impact landings.
Key Specifications & Technical Highlights:
Application: Downhill & Freeride
Cassette Compatibility: 11-speed
Hub Material: CNC-machined aluminum body
Bearings: 4x high-grade sealed industrial bearings
Brake Interface: 6-bolt disc brake
Axle Type: 12 mm thru axle
Axle Width (O.L.D.): 150 mm
Bolt Circle Diameter: 58 / 49 mm
Flange Distance: 74.45 mm
Weight: 269 g
Model Designation: D772SB
