The Ksyrium 30 Disc is a perfect entry point into high-level race performance. This all-new UST Road Tubeless system delivers a smoother ride and improved puncture resistance while retaining a lightweight feel for climbing and accelerating. By removing the tube, we've also removed friction, so there's less rolling resistance, which means it requires less energy to reach higher speeds. The 30mm deep rim optimizes aero performance and improves stability in crosswinds. The alloy rim benefits from our unrivaled experience creating light yet strong rim extrusions. We do this by carefully tuning the thickness of the rim wall to hit the sweet spot between stiffness, strength and weight. The bladed straight pull spokes are laced to our high-end Infinity hub platforms optimal spoke tension balance is a guarantee for perfect stiffness and great durability, with only 1 spokes length for both wheels to worry about The Instant Drive 360 ratchet freewheel system is quick to engage and offers low friction. This hub easily converts from Shimano/SRAM to Campagnolo or XD cassette and is compatible with Center Lock disc rotors.Features:Dynamic and agile thanks to double butted spokes and Infinity hub platform:- ID360 freewheel technologyInfinity hub platform: Stiffer axle, durable bearings and new design.Light and aero 30mm deep rims:- 30mm deep, 19mm wide (internal) Light welded rim Traditionnal drilling Refined UST rim bed that eases tyre mountingLight double butted flat spokes:- Refined tubeless technology helps you ride faster and smoother, while being easy to install and maintain. Optimised UST rim tape shape Durable and perfectly sealed rimSpecifications:Hubs:- Freewheel technology: Instant Drive 360- Bearing technology: QRM automatic setting sealed cartridge- Axle size: Rear 12x142 Convertible to quick release with adapters - Axle material: Aluminum- Body material: Aluminum- Body design: Infinity- Freewheel: Shimano HG road- Disc standard: Center Lock® onlySpokes:- Material: Steel- Lacing: Crossed 2 (front and rear) - Nipples: Steel, ABS, black- Shape: Straight, extra-flat, constricted, antirot (front and rear)Rims:- Material: Maxtal- Tire: UST Tubeless Ready Use with Mavic Tubeless Tape- Height: 30 mm- Braking: Disc- Internal width: 19 mm- Joint: SUP welding technology- Drilling: Traditional (front/rear 24 holes)- ETRTO size: 622x19TCIntended use:- ASTM category 2: Road and offroad with jumps less than 15cm- Maximum weight supported by the wheels: Must not exceed 120 kg (bike weight included)- Maximum tyre size: Width 62mm - pressure max. 3.8Bar/55PSICompatibility:- Freewheel body: Convertible SHIMANO HG light road - Freewheel body: Convertible CAMPAGNOLO ED - Freewheel body: Convertible CAMPAGNOLO N3W - Rear axle adapters: 12x142 convertible to 9x135 - Freewheel body: Convertible SHIMANO MS - Rear axle adapters: 12x142 convertible to 12x135 - Freewheel body: Convertible SRAM XD road In the box:- User guide- UST valve not mounted on wheel- Rim tape mounted on wheel- Rear axle adapter: 12x142 convertible to 9x135- Multifonction adjustment wrench with the rear wheelTechnology:Maxtal aluminum alloy:- Light and strong. Exclusive to Mavic, this specific aluminum alloy offers a higher strength to weight ratio than conventional 6106 alloy.Infinity 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.SUP welding technology:- Welded Machined Process, stronger and smoother joint. After bending, the rim joint is arc welded. The welded seam is then milled for a smooth finish.QRM Auto bearing preload technology:- Quality of 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.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.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.