Mavic Ksyrium SL Disc Wheelset

The Mavic Ksyrium SL Disc wheelset represents the best of French craftsmanship in premium aluminum road bike wheels. 120 g lighter than the previous Ksyrium Elite UST Disc thanks to patented ISM4D machining, this wheelset combines exceptional lateral stiffness, maximum durability, and ultra-precise disc braking. Featuring Fore technology with no rim tape and the UST Tubeless system, it’s the ultimate choice for demanding cyclists seeking performance, responsiveness, and everyday comfort.

Mavic Ksyrium SL Disc wheelset highlights

• Patented ISM4D machining: Removes excess material between the spoke holes, reducing each rim’s weight to just 400 g and dramatically lowering rotational inertia.
• Fore technology (tubeless with no rim tape): The rim’s upper bridge remains intact, increasing stiffness by 20% while saving 60 g of rim tape per pair.
• Patented aerodynamic spokes: Tapered spokes with an exclusive elliptical profile help save up to 5 watts against the wind.
• Infinity hubs & ID360 freewheel: Instant power transfer (9° engagement) thanks to the Instant Drive 360 dual-pawl system and non-contact spoke lacing.
• UST Road Tubeless system: Easy, airtight tubeless setup delivers more traction and comfort, along with significantly improved puncture resistance.
• QRM Auto bearings: Sealed cartridge bearings with automatic preload adjustment for smooth, long-lasting rotation with no mechanical play.

Technical specifications

• Use: Endurance road, racing, gran fondos (ASTM Category 2).
• Rim material: Maxtal aluminum alloy (Made in France).
• Rim height: 22 mm.
• Internal width: 19 mm (ETRTO 622x19TC, hooked profile).
• Rim drilling: Fore technology (24 holes front and rear, no drilling through the upper bridge).
• Freewheel technology: Instant Drive 360 (ID360, 9° engagement / 40 teeth).
• Freehub body: Shimano / SRAM HG Road or Sram XD. Compatible with Campagnolo using an optional freehub body
• Disc mount: Center Lock® only.
• Thru-axles: Front 12x100 mm / Rear 12x142 mm (convertible to QR quick release with adapters, not included).
• Spokes: 24 stainless steel spokes per wheel, straight-pull, tapered aerodynamic profile, anti-rotation (2-cross front/rear).

Materials and construction

• Rims: 100% Maxtal aluminum alloy (machined SUP weld)
• Spokes: 100% stainless steel (M7 brass nipples)
• Hubs: Aluminum bodies and axles (Infinity design)
• Bearings: Sealed cartridge (QRM Auto technology)

Maintenance tips

• Clean the wheels with fresh water and a sponge or soft cloth (avoid spraying high-pressure water directly at the bearings and freewheel).
• Check and replace tubeless sealant regularly (every 3 to 6 months).
• Lubricate the ID360 freewheel mechanism only with the dedicated Mavic grease.

Compatibility, tires, and setup

For optimal performance and safety on the road, follow Mavic’s recommended specifications and usage limits.

• Recommended tire width: 23 mm to 32 mm road tires (minimum width: 23 mm).
• Tire type: UST Tubeless Ready or Tube Type (with an inner tube).
• Inflation pressure: Maximum permitted pressure of 6.75 Bar / 97 PSI (with a 23 mm tire).
• Freehub compatibility: Stock Shimano HG (convertible to SRAM XDR or Campagnolo with optional freehub bodies).
• Weight limit: Maximum supported weight for the wheels: 120 kg (including the bike).

Package contents and tubeless setup

• Included accessories: User guide, 2 UST valves (not installed), and 2 multifunction adjustment tools.
• Fore Tubeless advantage: No rim tape required for an airtight seal. Install the UST valves directly, fit your Tubeless Ready tires, and add sealant.