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Fulcrum Wind 40C Carbon Rim Brake Wheelset

AC3 Carbon Rim-Brake Wheelset for All-Round Racing

Regular price ₹139,990
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The Fulcrum Wind 40C is a carbon rim-brake wheelset for road and triathlon riders who want one wheelset to cover fast training, Gran Fondos and general performance riding. Fulcrum positions it as an all-round option rather than a specialist climbing or deep-section aero wheel. The carbon construction is intended to balance aerodynamic efficiency on flatter roads with manageable handling on technical descents and a responsive feel when the road rises.

Built for Mixed Terrain. Fulcrum combines an aerodynamic rim profile with an oversized rear hub flange and its Two-to-One spoke arrangement to improve power transfer under acceleration. The AC3 braking treatment is particularly relevant for carbon rim-brake users, using laser processing on the braking track to improve pad contact and clear moisture more effectively. That makes the Wind 40C a more practical everyday performance option than an untreated carbon braking surface, especially when conditions are variable.

Check your Setup. Riders moving from aluminium rims should confirm that their brake pads are suitable for carbon braking surfaces before installation. Cassette and axle compatibility also need to match the bicycle, particularly when transferring an existing drivetrain or replacing another wheelset. The Wind 40C is best suited to riders who want an established rim-brake performance platform rather than converting the bike around a different braking or wheel standard. Confirm the detailed interface requirements in Specifications before fitting.

Product details

Specifications

DisciplineRoad, Triathlon
ASTM Category1
Wheel Size28" / 700C
Tyre TypeClincher
Tubeless CompatibilityNo
Recommended Tyre Width23-47 mm
Rim MaterialFull Carbon, UD Unidirectional Carbon Fibre
Rim Height40 mm Front and Rear
External Rim Width24.2 mm
Internal Rim WidthETRTO 17C
Braking SystemCaliper Rim Brake
Braking Surface3K Carbon Fibre with AC3 Treatment
Front HubAluminium with Aluminium Flanges
Rear HubAluminium with Oversized Aluminium Flange
BearingsSealed Cartridge Bearings
Axle MaterialAluminium
Axle Compatibility (Front & Rear)Quick Release
Freehub BodyPlasma-Treated Shimano/SRAM HG
Cassette CompatibilityShimano/SRAM Hyperglide
Spacer Requirement1.85 mm for Shimano Road 8-/9-/10-Speed Cassettes
Front Spokes18, 9 Left and 9 Right
Rear Spokes21, 2:1 Two-to-One, 7 Left and 14 Right
Spoke MaterialStainless Steel, Double-Butted
Spoke ProfileAero, Straight-Pull
NipplesAluminium
Weight1555 g
Cyclist Weight Limit109 kg

Features

  • Full Carbon UD Rims: Balance aerodynamic efficiency, responsive climbing and stable handling for varied road riding.
  • Oversized Rear Hub Flange: Supports efficient power transfer during acceleration through the drive-side spoke arrangement.
  • Aero Straight-Pull Spokes: Reduce frontal area while supporting a responsive wheel structure.
  • Sealed Cartridge Bearings: Provide straightforward, protected hub bearing operation for regular road use.

Technologies

  • AC3 All Conditions Carbon Control: Laser-treated braking tracks improve braking power by 6% dry and 43% wet in Fulcrum tests.
  • 2:1 Two-to-One: Doubles spokes in critical areas to reduce flex and balance drive-side and non-drive-side spoke tension.
  • MoMag: Allows nipple installation without drilling the upper rim bridge, improving structural continuity and eliminating rim tape.
  • RDB Rim Dynamic Balance: Arranges carbon material to maintain balanced rotational dynamics around the rim.
  • DRSC Directionated Rim-Spoke Coupling: Aligns rims, spokes, nipples and hubs to maintain consistent spoke tension.
  • Anti-Rotation System: Helps spokes retain their designed tension and aerodynamic orientation during use.
  • FIC Fulcrum Identification Card: Identifies each wheel as manually assembled and checked under Fulcrum's quality-control process.
  • Traceability: Identifies production information to support component tracing if a manufacturing batch issue is confirmed.

Warranty and support

Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.

Questions after delivery? Ask TBA Guide or WhatsApp us.

Shipping and returns

We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy

Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy