The Shimano WH-RS300 is a dependable 105-series road wheel built for riders who want proven Shimano engineering without the premium price tag. With a 24mm aluminium rim, straight-pull bladed spokes, and a sealed cup-and-cone hub, it's an ideal training partner or reliable daily wheel for rim-brake road and sportive bikes.

Highlights

• 24mm aluminium clincher rim: Low-profile design balances aerodynamics and durability across a wide range of road conditions.
• Straight-pull bladed spokes: 20 rear spokes in a bladed, butted straight-pull pattern for improved stiffness, aerodynamics, and easier tensioning.
• Shimano HG 11/10-speed freehub: HG spline L freehub accepts 10- and 11-speed Shimano and SRAM road cassettes (10-speed requires adapter).
• Cup-and-cone bearings with contact sealing: Pawl-ratchet engagement hub with labyrinth and contact sealing keeps water and dirt out during wet-weather training.
• Quick-release axle: 130mm O.L.D. quick-release — fits all standard road dropouts; Shimano QR skewer included.
• Rim brake compatible: Machined aluminium brake track delivers consistent rim-brake performance in wet and dry conditions.
• Shimano 105 R7000 lineage: Trickle-down technology from Dura-Ace and Ultegra in a robust, value-focused package.

Construction

The WH-RS300 rim measures 622 x 17C (700c) with a 17mm internal width and 23.2mm external width, accommodating tyres from 23c to 32c for versatile tyre fitment. The elbow-less straight-pull spoke design reduces stress at the hub flange and simplifies replacement, while the bladed profile cuts aerodynamic drag compared to round spokes.

Compatibility & Fit

Rear wheel only. O.L.D.: 130mm (standard road quick-release). Axle: quick-release. Freehub: Shimano HG spline L — compatible with 11-speed and 10-speed Shimano/SRAM road cassettes (10-speed requires a spacer). Brake: rim brake only (not disc compatible). Recommended tyre sizes: 23–32mm clincher (622 ETRTO). Wheel size: 700c.