Berd Sparrow50 Gold Carbon Wheels

The Berd Sparrow50 Gold Carbon Wheels are engineered to deliver exceptional speed, efficiency, and control across demanding gravel terrain. Combining a deep 50 mm aerodynamic carbon rim with Berd’s lightweight, vibration-damping spokes, these wheels are designed to address two of gravel riding’s biggest performance challenges: aerodynamic drag and high-frequency vibration. The result is a wheelset that delivers race-level efficiency on smooth sections while maintaining the composure and comfort needed when the road turns rough.

The Sparrow50 Gold features a 50 mm deep carbon rim profile optimized for aerodynamic performance with 40 to 60 mm tires, with testing focused around 45 to 55 mm setups. Wind tunnel testing at the A2 Wind Tunnel demonstrated a 14% reduction in yaw-weighted aerodynamic drag compared with the previous-generation Sparrow, making the Sparrow50 Gold Berd’s fastest gravel wheelset through the wind. The 30 mm internal rim width provides an ideal platform for modern wide gravel tires, while the 4 mm hooked bead helps secure the tire and supports confident low-pressure riding.

Berd’s proprietary spokes provide the wheelset with another significant performance advantage. Weighing just 2.4 grams each, the spokes use viscoelastic damping to dissipate high-frequency vibration before it reaches the rider. This unique construction helps reduce the harshness and fatigue associated with rough gravel while maintaining efficient power transfer. Independent testing has measured a 5-watt rolling efficiency savings at 30 km/h, adding further performance to the wheelset’s lightweight and aerodynamic design.

At just 1,298 grams, the Sparrow50 Gold is exceptionally light for a 50 mm deep wheelset. Talon ESL-R hubs feature a lightweight 36-tooth ratchet for quick engagement, Tri-Coat aluminum freehub technology to resist cassette bite, and equal spoke lengths across both wheels for simplified servicing. The front hub also features tool-free convertible end caps for 12 mm and 15 mm axle compatibility.

Developed by Berd, the Sparrow50 Gold Carbon Wheels combine aerodynamic efficiency, vibration damping, low weight, and gravel-specific durability for riders looking to maximize performance across every type of terrain.

Key Features

• 50 mm Aerodynamic Carbon Rim - Wind-tunnel optimized profile delivers 14% lower weighted-average aerodynamic drag than the previous-generation Sparrow
  
• Berd Vibration-Damping Spokes - Viscoelastic spokes absorb high-frequency gravel vibration while delivering exceptional strength and a claimed 5-watt rolling efficiency savings
  
• Lightweight 1,298 g Wheelset - Extremely low weight provides responsive acceleration and climbing performance without sacrificing aerodynamic depth
  
• 30 mm Internal Rim Width - Tubeless-ready rim is optimized for modern 40 to 60 mm gravel tires and low-pressure riding