Fulcrum Wind 40C RB Carbon Road Bike Wheelset

The Fulcrum Wind 40C RB is a high-performance carbon road wheelset designed for riders who want speed, control, and reliability on every ride. Built with a 40mm full carbon unidirectional rim profile, these wheels deliver an excellent balance of aerodynamics, climbing efficiency, and stability. Whether you're training daily, riding long-distance Gran Fondos, or pushing hard on fast road sections, the Wind 40C RB is engineered to enhance your cycling experience. Featuring Fulcrum's advanced AC3™ laser-treated braking surface, braking performance is significantly improved, especially in wet conditions. The Mo-Mag™ rim construction increases stiffness and reliability by eliminating spoke holes in the rim bed. Combined with aero straight-pull spokes, oversize rear hub flange technology, and sealed cartridge bearings, the Wind 40C RB offers responsive acceleration, smooth rolling efficiency, and dependable performance for demanding road cyclists.

Key Features

• 40mm Carbon Rim Profile: Delivers an ideal balance of aerodynamics, climbing efficiency, and stability.

• AC3™ Braking Technology: Laser-treated braking surface improves braking control and performance, especially in wet weather.

• Mo-Mag™ Rim Construction: Rim design without nipple holes increases stiffness, strength, and long-term reliability.

• Two-to-One™ Spoke Pattern: Optimizes power transfer and wheel responsiveness during acceleration.

• Full Carbon UD Rim: Lightweight unidirectional carbon construction enhances performance and durability.

• Aero Straight-Pull Spokes: Improves aerodynamics while maintaining excellent wheel strength.

• Sealed Cartridge Bearings: Provides smooth rolling performance and reduced maintenance requirements.

• Oversize Rear Hub Flange: Increases torsional rigidity for efficient power delivery.

Product Specifications

• Brand: Fulcrum

• Model: Wind 40C RB

• Tyre Type: Clincher

• Wheel Size: 28"

• Discipline: Road / Triathlon

• ASTM Category: 1

• Weight: 1555 g

• Rim Material: Carbon

• Rim Finish: Full Carbon UD (Unidirectional)

• Profile Height: Medium

• Rim Height: 40 mm (Front & Rear)

• Rim Width: 24.2 mm

• Inner Rim Width: ETRTO 17C

• Compatible Tyre Width: 25 mm to 50 mm

• Braking System: Caliper Brake

• Braking Surface: 3K Carbon Fiber with AC3 Treatment

• Front Axle Compatibility: QR

• Rear Axle Compatibility: QR

• Front Spokes: 18 (9 Left – 9 Right)

• Rear Spokes: 21 (7 Left – 14 Right)

• Spoke Material: Stainless Steel, Double Butted

• Spoke Profile: Aero, Straight Pull

• Nipples: Aluminum

• Front Hub: Aluminum with Aluminum Flanges

• Rear Hub: Aluminum with Oversize Aluminum Flange

• Bearings: Sealed Cartridge Bearings

• Freewheel Body Options: HG11, Campy, XDr

• Freewheel Treatment: Plasma Treated HG Freewheel

• Axle Material: Aluminum

• Maximum Rider Weight: 109 kg

Aerodynamic & Braking Performance

• AC3™ Laser Processing: Removes resin residue from the braking track with exceptional precision for stronger and more consistent braking.

• Improved Wet Weather Control: Offers up to 30% better braking performance in challenging rain conditions.

• Efficient Aerodynamics: The 40mm profile helps maintain speed on flat roads while remaining stable in crosswinds.

• Balanced Ride Feel: Designed to perform equally well on climbs, descents, and long endurance rides.

• Enhanced Power Transfer: Oversize rear hub flange and Two-to-One™ lacing maximize acceleration efficiency.

Why Choose This Product

• Excellent balance of lightweight climbing performance and aerodynamic efficiency.

• Advanced AC3™ braking technology delivers greater confidence in all weather conditions.

• High-quality carbon construction ensures durability and responsive handling.

• Suitable for training rides, endurance events, Gran Fondos, and competitive road cycling.

• Reliable Fulcrum engineering with proven technologies for long-term performance.

• Smooth rolling sealed bearings reduce maintenance while enhancing ride quality.

In the Box

• 1 x Fulcrum Wind 40C RB Front Wheel

• 1 x Fulcrum Wind 40C RB Rear Wheel

• User Documentation