R-Sys SLR The lightest clincher wheelset available now with a wider, deeper rim
With the R-Sys SLR, we created a wheel that’s not only one of the few clincher wheelsets below the 1300g mark, but also the most laterally stiff, with high endurance, strength and the greatest braking ability.
Full Tracomp technology
R-Sys SLR features the full Tracomp technology, front and rear, which is exceptionally good for both climbing and descending.
Tracomp, which stands for Traction/Compression, combines extremely low weight with high lateral stiffness for precision and control when descending – and full power transfer when climbing out of the saddle.
So why does Tracomp make such a difference? Well a traditional wheel works with spokes that are likely to lose their tension under high lateral loads or weaken the wheel components when the tension gets too high. Tracomp, on the other hand, brings extra lateral stiffness in all conditions by allowing the spoke to work both in traction and compression. To achieve this, spokes needs to be:
- Round and hollow (tubes) so that they won’t buckle when compressed
- Clamped on both ends by a nipple that is bonded to the spoke and directly threaded into the rim’s Fore drilling and then into a ring inside the hub that locks the spoke head and prevents the spokes from travelling inside their slots
- Carbon to provide the desired weight saving and extra stiffness during the tension phase, as carbon fibers don’t stretch as much as steel or aluminum alloy
The result is a wheel that is 30% stiffer laterally than any other wheel in its weight category.
Low weight, low vibrations
The beauty of the Tracomp technology is that it also delivers two others benefits that every cyclist needs when going for an Alpine adventure: low weight thanks to the superlight carbon spokes, and road vibration dampening and vertical compliance for extra comfort, so you can ride longer, further and higher.
And it’s not just about the spokes: QRM SL bearing technology combines smooth and durable bearings in a very light package for extra performance.
Exalith – for downhill
R-Sys SLR is a true mountain wheelset that recognizes once you’ve reached the top, you’ll have to go back down.
For that, Exalith is a great compliment to the R-Sys SLR features. Exalith shortens stopping distance by 20%, wet or dry, and provides powerful and easy to modulate braking to give you total confidence downhill.
ISM4D: save weight, save Watts
The ISM4D rims are not only superlight, at just 370g, but they also save a few watts in aerodynamics, helping you descend even faster. ISM4D works by removing any material from the rim that is not needed for durability or stiffness to create a smooth rounded rim profile.
Matching Yksion Pro tyres
The wheel comes with our Yksion Pro tyres that offer a great balance of grip, rolling resistance and a low weight of only 205g in 25mm thanks to the supple 127 TPI casing, Kevlar beads and our well-balanced rubber compound.
The front wheel comes with the Griplink version that offers a specific tread pattern which helps evacuate water when cornering to increase confidence and speed in difficult conditions. It also offers very strong Kevlar puncture protection to improve safety.
The rear wheel comes with the Powerlink version, which sports a more supple nylon puncture protection instead of Kevlar to lower rolling resistance. To reduce rolling resistance and increase speed even further, the tread pattern is optimized to reduce the pressure on the ground, while improving water evacuation from the center to increase traction and efficiency in wet conditions.
Ksyrium Pro Exalith SL is available with 23 or 25mm tyres. Yksion Pro tyres are also available in 28mm for even more comfort.
* recommended retail price
The lightest alloy clincher wheel
New ISM 4D, Exalith 2 rims
Carbon Tracomp spokes
Superlight bearings and axles: QRM SL
High efficiency and energy transfer
High lateral stiffness: Tracomp
Superlight Yksion Pro PowerLink tyre
Taller rim profile
Maximum lateral stiffness: Tracomp
Superlight and grippy Yksion Pro GripLink tyre
Rounder rim profile for easier handling
Tyre 700x23: 190 grams
Pair without tyre: 1295 grams
Front without tyre: 555 grams
Rear without tyre: 740 grams
Height: front 24mm, rear 26 asymmetrical
Brake track: Exalith 2
Weight reduction: ISM 4D
Valve hole diameter: 6.5 mm
ETRTO size: 622x15C
Recommended tyre sizes: 23 to 32 mm
Material: carbon fiber (front and rear non drive side) and Zicral (rear drive side)
Shape: Tracomp tubular (front and rear non drive side) and straight pull bladed and double butted (rear drive side)
Nipples: Fore integrated aluminum
Count: front 16, rear 20
Lacing: radial front and rear non-drive side, crossed 2 rear drive side
Front and rear bodies: aluminum
Axle material: aluminum
Super Light sealed cartridge bearings
Freewheel: FTS-L steel
Yksion Pro GripLink (front) & PowerLink (rear)
Front and Rear Tread: Single Compound
Casing: 127 TPI
Breaker: Front Kevlar, Rear nylon
Dimension: 25-622 (700x25c)
Max. Pressure: 25mm 7.7 bars - 110 PSI
BR601 quick releases (V24 501 01 frt, V24 502 01 rear)
Exalith brake pads (V24 703 01 Shimano/Sram, V24 704 01 Campagnolo)
Computer magnet (105 416 01)
Multifonction adjustment wrench (325 423 01)
Tracomp ring tool (99 080 01)
ASTM CATEGORY 1 : road only
For a longer longevity of the wheel, Mavic recommends that the total weight supported by the wheels doesn't exceed 120kg, bike included
QUICK RELEASE USER GUIDE
Warranty User Guide
recommended tire pressure
UST wheels user guide
UST rim tape
Tracomp user guide
QRM SL bearings - maintenance
FTS-X - maintaining and replacing the FTS-X free wheel mechanism
Wheels user guide