Mavic Cosmic SLR 45 UST Disc wheelset

With lighter 45mm rims featuring the new UD² finish, this carbon wheelset is the fastest, stiffest and lightest all-rounder for road bikes with disc brakes. This all-new carbon wheelset is a great choice for road riders aiming to be fast and efficient in all types of riding and racing situations. Not only does the 45mm airfoil rim slice through the wind with minimal drag, but it’s also amongst the lightest in its category. This season, the external carbon layer features the new UD² construction for a distinctive look and an even lighter rim laminate, saving another 15g per rims. A new rim laminate coupled with the exclusive Fore Carbon technology leaves the upper rim bridge intact and reinforces the rim only where needed, saving 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 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, the patented elliptical spokes save another 5 watts. The 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. It's available for Shimano and SRAM XD-Road driver bodies and can convert to Campagnolo with an optional driver body. It's compatible with a 12x100 axle up front, and 12x142 rear, and converts to Quick Release with supplied adapters. For Center Lock disc rotors only.

Features

Accelerate and climb faster, hold higher speeds
Stiffer wheel for improved power transfer
Improved UST Road delivers more speed, comfort and control in an easy to use tubeless system
New UD² rim laminate and Fore Carbon spoke attachment save 55g and eliminate rim tape (another 30g saved per wheel)
45mm deep, 26mm wide NACA rim profile optimized for disc brakes
Patented lightweight aero spokes
Fore Carbon technology keeps the rim upper bridge solid and makes the rim stiffer
New Infinity hub plaform: stiff axle, durable bearings and new hub design optimize lacing and spokes tension
ID360 freewheel technology for instant power transfer
No tubes means less friction, better efficiency and grip, and 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

Tech Specs

Rims

Material: 100% carbon fiber with UD external layer
Height: 45 mm
Internal width: 19 mm
Drilling: Fore Carbon tapeless tubeless technology (front/rear 24 holes)
Braking: disc
ETRTO size: 622x19TC
Tire: UST Tubeless Ready
Real weight: 1.455 g (pair)

Spokes

Material: steel
Shape: straight, aero, constricted, antirot (front and rear)
Nipples: brass, black
Screw: M6
Lacing: crossed 2 (front and rear)

Hubs

Body material: aluminium
Body design: INFINITY
Disc standard: Center Lock® only
Axle material: aluminum
Axle size: front 12x100 / rear 12x142 - Convertible to quick release with included adapters
Freewheel technology: Instant Drive 360
Freewheel: Shimano HG road
Bearing technology: QRM automatic setting - sealed cartridge

Intended use

ASTM CATEGORY 2 : road and offroad with jumps less than 15cm
For a longer longevity of the wheel, Mavic recommends that the total weight supported by the wheels doesn't exceed 120kg, bike included
Maximum tyre pressure: 6.75bar/97PSI with a 23mm tyre - 3.8bar/55PSI with a 62mm tyre
Recommended tire sizes: 25 to 32 mm
Max. Pressure: see indication on wheel and tire. If they differ, use the lowest of the 2

Included

User guide
UST valve not mounted on wheel
Multifonction adjustment wrench + spoke M6 wrench with the rear wheel

Technologies

Fore 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.

UST 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.

Instant 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.

QRM Auto bearing preload technology
Mavic's latest innovation. 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.