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Description
Cut the Air. Cut The Buzz.
The BERD Sparrow50 Gold 700c was designed to be the most aerodynamic and vibration damping wheelset the gravel world has ever seen. They feature a super aerodynamic 50mm deep rim to cut drag, and their vibration-damping spokes to give an unbelievably smooth ride. No other gravel wheel does both.
The new Talon ESL-R hubs are their fastest gravel hubs ever and feature precision machined TriCoat aluminum that resists cassette bite and surface marking. Engineered with varying hook flange widths to maintain identical spoke lengths across both sides of both wheels, simplifying service, spares, and race-day repairs. The ESL-R hubs feature a new lightweight dual-sprung 36 tooth ratchet freehub for instant power transfer and explosive acceleration the moment you hit the pedals.
The ESL-R front hubs feature innovative removable sleeves that easily convert between 12 mm and 15 mm axles in seconds with no tools needed.
Features:
- 30mm Internal Width: Made for wide tires with a 30mm internal rim width and a super wide 4mm hooked bead to protect against pinch flats.
- Tire Compatibility: Compatible with 40-60mm tires, tunnel-optimized at 45-55mm with Schwalbe.
- Lightest in Class: At 1,298 g, these are the lightest production 50mm gravel wheels available.
- Viscoelastic Damping: Berd Spokes are the only spokes that damp vibrations through the viscoelasticity of the fiber.
- Less Fatigue, More Endurance: Less buzz reaches your hands, arms, back, and saddle, so you finish long gravel days fresher and stronger.
- Independently Measured: Third-party testing by John Karrasch measures a 5 watt saving at 30km/h from vibration damping alone.
- Two sizes: Also available in 32" version.
Specs:
- Rim Depth: 50mm
- Rim Internal Width: 30mm
- Sidewall Width: 4mm
- Hub: Talon ESL-R
- Hole Count: 24
- Axle Compatibility: Front: 12 x 100mm or 12 x 110mm (both convertible to 15mm) / Rear: 12 x 142mm or 12 x 148mm
- Brake Compatibility: Disc (Centerlock)
- Recommended Tire Size: 40-60mm (optimized for 45-55mm)
- Spoke Length: 259mm
- Wheel Weight: Front: 600 g / Rear: 698 g
- Wheelset Weight: 1,298 g
FREE Cassette Installation - Order a cassette along with a wheelset and we can install the cassette for free. Cassette installation requires special tools that not all our customers have. The cassette will be professionally installed and torqued to spec. Just add "Please install cassette" to your order notes at checkout and we'll take care of you.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Please note: This product ships signature required.
Specifications
Axles: Thru-Axle | |
Brake Compatibility: Disc | |
Discipline: Gravel | |
Internal Rim Width: 30 mm | |
Tire Compatibility: Clincher - Hooked | |
Type: Set | |
Shimano HG 11/12sp - 12x100/12x142, Centerlock | Cassette Type: Shimano HG |
Mfg PartNum: WSP5029OOHRWT | |
Sram XDR - 12x100/12x142, Centerlock | Mfg PartNum: WSP5029OOXRWT |
Cassette Type: XDR | |



















