The Shimano Dura-Ace HB-7710 is a race-pedigree rear track hub built for fixed-gear velodrome and street riders who demand the smoothest, most reliable rolling platform available. Double-sided threading lets you run fixed/fixed — swap sprockets from sprint gear to pursuit gear without pulling the wheel.

Highlights

• Dura-Ace precision bearings: Super-polished cup and cone races with stainless steel balls deliver near-frictionless rotation lap after lap.
• Double-sided fixed threading: Both flanges are threaded for a sprocket and lockring, giving you two independent gear options in a single hub.
• Low-flange design: Reduced flange height suits 28-hole lacing patterns and provides a more compliant, fatigue-resistant wheel build compared to high-flange alternatives.
• Bolt-on 10mm axle: Traditional 10mm solid-steel axle with M10 x 1.0mm threading at 120mm over-locknut dimension — compatible with standard track dropouts.
• High-polish alloy shell: Anodised silver alloy hub body is lightweight yet rigid, with black Dura-Ace decals for a clean track aesthetic.
• Includes lockring and track nuts: Ready to lace — Dura-Ace lockring and track nuts supplied.

Construction

The HB-7710 uses Shimano's well-proven cup and cone bearing system. The polished bearing races and stainless steel balls allow precise preload adjustment and easy field servicing — a critical advantage for track competitors who need consistent feel across multiple events. The alloy shell is machined to close tolerances, keeping spoke tension even and wheel-build straightforward.

Compatibility & Fit

Rear hub. Frame spacing (O.L.D.): 120mm. Axle: bolt-on 10mm solid axle, M10 x 1.0mm threading. Spoke holes: 28H. Threading: double-sided (fixed/fixed) — accepts standard 1/8" track sprockets and lockrings on both sides. Flange-to-flange offset: 0mm (symmetric, double-threaded configuration). Compatible with standard ISO-threaded track sprockets. Not compatible with freehub cassettes or freewheel. The 36H variant is NJS approved; this 28H variant is not NJS stamped.