Welcome to the Mavic website

COSMIC SLR 40
This all-new carbon wheelset is a great choice for road riders aiming to aiming to be fast and efficient in all types of riding and racing situations. Not only does the 40mm airfoil rim slice through the wind with minimal drag, but it’s also the lightest in its category.
A new rim laminate saves 40g per rim.

The spokes attach to the rim without any need to drill the upper rim bed, so no rim tape is required. That means more weight savings (30g) and less hassle when it comes to set up or repair tubeless tyres; The new shape of the rim bed also makes it easier than ever to mount and remove tires. UST Tubeless setup means no tube, so no friction, and more air volume means a smoother ride. The result is a faster ride with super low rolling resistance. At last, our patented elliptical spokes save another 5 watts.

Our new Infinity hub platform optimizes the spoke lacing for efficient power transfer through highly controlled spoke tension. The Instant Drive 360 freewheel with automatic bearing preload adjustment (QRM Auto) provides fast engagement, high stiffness and added durability. In addition to more speed, you also get better braking control with our proven iTgMax technology. A patented laser treatment of the brake track shortens stopping distance in both dry and wet conditions, and a special lay-up and heat treatment process makes it the strongest and most durable of all carbon rims for rim brakes.
It's available for Shimano driver body and can convert to Campagnolo and SRAM XD-Road with optional driver bodies.
These wheels are designed, engineered and patented by Mavic in Annecy, France, and are 100% handmade in our European carbon factory.

Main features

Accelerate and climb faster, hold higher speeds

New rim laminate saves 40g
40mm deep/26mm wide NACA profile optimized for rim brakes
Patented light aero spokes

Stiffer wheel for improved power transfer and superior braking

New Infinity hub plaform: stiff axle, durable bearings and new hub design optimizes lacing and spokes tension
ID360 freewheel technology for instant power transfer
iTgMAX brake track offers the best braking efficiency and highest reliability of all carbon rims

Improved UST Road delivers more speed, comfort and control in an easy to use tubeless system

No tubes means less friction, better efficiency and grip, a reduced risk of punctures
New rim bed shape makes it easier to mount and change tires
Fore Carbon drilling technology doesn't require the use of rim tape

Specifications

  • Weight Pair : 1390 g
  • Weight Front : 640 g
  • Weight Rear : 750 g
  • Material: 100% carbon fiber
  • Height: 40 mm
  • Internal width: 19 mm
  • Drilling: Fore Carbon tapeless tubeless technology (front 18 holes and rear 24 holes)
  • Braking: pads
  • ETRTO size: 622x19TC
  • Tire: UST Tubeless Ready
  • Material: steel
  • Shape: straight, aero, constricted, antirot (rear freewheel side)
  • Shape: straight, aero, constricted (front and rear opposite freewheel side)
  • Nipples: brass, black
  • Screw: M6
  • Lacing: radial (front) - Isopulse (rear)
  • Body material: aluminium
  • Body design: INFINITY
  • Axle material: aluminum
  • Axle size: front 9x100 / rear 9x130 - Quick release only
  • Freewheel technology: Instant Drive 360
  • Freewheel: Shimano HG road
  • Bearing technology: QRM automatic setting - sealed cartridge
  • Freewheel body: convertible SRAM XD road (kit V2580101 sold separately)
  • Freewheel body: convertible SHIMANO HG light road (kit V3850101 sold separately)
  • Freewheel body: convertible SHIMANO MS (kit V3990101 sold separately)
  • Freewheel body: convertible CAMPAGNOLO ED (kit V3440101 sold separately)
  • Freewheel body: convertible CAMPAGNOLO N3W (kit V4270101 sold separately)
  • User guide
  • Quick release level 2
  • Carbon brake pads with each wheel
  • UST valve not mounted on wheel
  • Multifonction adjustment wrench + spoke M6 wrench with the rear wheel
  • Minimum tyre size: width 23mm - pressure max. 6.75Bar/97PSI
  • Maximum tyre size: width 62mm - pressure max. 3.8Bar/55PSI
  • ASTM category 1 : road only
  • Maximum weight supported by the wheels: must not exceed 120 kg (bike weight included)

Key technology

Efficiency RigidityFore Carbon tapeless tubeless technology
Stiffer and stronger. Instead of drilling the rim to attach the spokes and nipples, a threaded metallic insert is wrapped inside the carbon layups of the lower rim bridge to enable the spoke nipples to be directly screwed in it. As a result, the upper rim bridge is left undrilled and doesn't require the use of a rim tape to be sealed.
Efficiency RigidityInstant Drive 360 freewheel technology
The new Instant Drive 360 freewheel system is super light and efficient. A large contactless rubber seal provides low friction, while a wide array of end caps makes it super versatile.
Efficiency RigidityIsopulse lacing design
Optimum energy transfer. The spokes are laced radially on the drive side and crossed 2 on the non drive side to maximise drive side dish, thus providing a better spoke tension balance between left and right flanges.
Efficiency RigidityUST tubeless technology
Traction and control. Universal Standard for Tubeless. Ready to ride tubeless system. The UST concept improves traction, control and comfort whilst reducing inertia and flats.
Safety ReliabilityiTgMAX carbon clincher technology for rim brake
Integral Glass Transition Temperature. iTgMAX consists in an inner rim bed finished with multiple layers of seamless carbon fiber to achieve a unique one-piece rim contour without cutting any fibers. The brake track is then finished with a laser machining to ensure the best braking efficiency.
Safety ReliabilityInfinity hub design
Efficient power transfer thanks to optimised non-contact spoke lacing (no noise under load) and tension distribution. The length of the spokes at the front and rear is identical. Maintenance is easy thanks to a tool-free solution.
Safety ReliabilityQRM Auto bearing preload technology
Qualité de Roulements Mavic Auto. Those cartridge bearings are of course double sealed with C3 internal clearance. Their preload is automatically adjusted to guarantee a perfect spin with no play on the long run.

User guides and documents

General User GuideDownload PDF
FreewheelDownload PDF
Quick ReleaseDownload PDF

These product categories might interest you