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Aero efficiency, quick acceleration and the improved ride quality of UST Tubeless. You get it all with this carbon road wheel featuring easier to use Road Tubeless technology and a lighter weight.
This versatile carbon road wheel is ideal for riders seeking the perfect balance between weight, aerodynamics and efficiency. New spokes and hubs give the Cosmic SL 40 a light and lively feel for climbing and accelerating.
Accelerate and climb faster, hold higher speeds
- 40mm NACA inspired rim shape minimizes drag for added speed
- Reduced inertia of the lightweight rim delivers instant acceleration
- Flat double butted spokes saves weight and improves responsiveness
Versatile performance for all road riding conditions
- Minimal drag, low inertia and high lateral stiffness makes it fast and efficient on all types of terrain, from the flats to mountain climbs
- iTgMAX brake track offers the best braking efficiency and highest reliability of all carbon rims
Improved UST Road delivering speed, comfort and control
- No tubes means less friction, improved efficiency and grip with reduced risk of punctures
- Rim bed shape makes it easier to mount and change tyres
Weight
- Pair: 1600g
- Rear: 895g
- Front: 705g
Understanding the different Mavic freehub body acronyms:
- HG or M11 – Shimano HG Road 11/12x (other speeds with spacer)
- MS - Shimano Microspline
- XD - SRAM XD
- XD-R - SRAM XD-R
- ED11 - Campagnolo 9/12x
- N3W - Campagnolo 13x
| Order Value | Service | Estimated Delivery | Cost |
|---|---|---|---|
| Under £39.99 | Royal Mail Tracked | 2–3 working days from dispatch | £4.99 |
| £39.99 and over | Royal Mail Tracked | 2–3 working days from dispatch | FREE |
| Any order — Express | Royal Mail Tracked 24hr / Parcel Force 24hr | Next working day from dispatch | £6.99 |
| Bikes | Parcel Force 48hr Signed For | 2 working days from dispatch | FREE |
Delivery times shown are from dispatch, not from the point of ordering. As we source products from a range of suppliers, lead times can vary — please check the product page, your cart, or your order confirmation for the most accurate estimate for this item.
Some remote UK postcodes (Highlands, Islands) may carry a courier surcharge on larger orders — we will always contact you before applying any additional charge.
Questions? Email sales@cyclestore.co.uk with your order number.

