The Shimano Dura-Ace HB-7710-R is a top-tier rear track hub built for fixed-gear racing and velodrome use. Double-sided threading lets you run a cog on either side of the hub shell, giving you flexible gearing options with a standard fixed lockring on each face. Combined with Shimano's precision cup-and-cone bearing system, this is a hub designed to handle serious track mileage with minimal maintenance.

Highlights

• Double-sided thread: Fixed sprocket compatibility on both sides of the hub shell for versatile gearing setups.
• Low-flange design: Reduces spoke stress and improves wheel compliance — well suited to both velodrome sprinting and everyday fixed-gear riding.
• Dura-Ace cup-and-cone bearings: Polished bearing races and stainless steel ball bearings deliver smooth, fast rotation with field-adjustable preload.
• 32-hole lacing: Compatible with standard 32-hole rims for reliable wheel builds at any skill level.
• Lightweight alloy shell: Machined aluminium hub body keeps rotating mass low without sacrificing durability.
• Dura-Ace pedigree: Shimano's flagship component line, engineered for elite track and competition use.

Design & Construction

The HB-7710-R features a machined aluminium hub body finished in Shimano's classic silver. The double-sided fixed thread allows installation of a fixed cog and lockring on either drive side — an approach favoured by track cyclists who want to swap gearing quickly or run the hub on different frames. Shimano's cup-and-cone bearing design means bearing preload is fully adjustable in the field, and replacement parts are widely available. The polished bearing races and stainless steel balls are a hallmark of the Dura-Ace standard.

Compatibility & Fit

Rear axle O.L.D.: 120mm. Axle diameter: 10mm (bolt-on). Spoke holes: 32H. Hub flange diameter: 52mm; flange P.C.D.: 44mm. Accepts standard 1/8-inch track cogs and lockrings on both sides. Designed for track frames with horizontal dropouts and 120mm rear spacing. Not intended for use with freewheels or cassettes — track-specific fixed-gear only.