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Superlight and durable for everyday performance

ISM4D rim weighs only 400g
Patented lightweight aero spokes and 22mm deep/19mm wide rims keep inertia low and control high
Solid upper rim bridge eliminates the need for rim tape, saves 60g

Laterally stiff, vertically compliant for a more dynamic ride

Fore technology keeps the rim upper bridge solid to make the rim stiffer
New Infinity hub plaform: stiff axle, durable bearings and new hub design guarantees wheel stability
ID360 freewheel technology for improved power transfer

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 drilling technology doesn't require the use of rim tape
Ksyrium has always represented the best of aluminum wheel technology. Following in the footsteps of the venerable Ksyrium Elite and Ksyrium Pro, the all-new Ksyrium SL takes it to the next level. It’s the perfect all-rounder for those seeking a wheel that delivers reliable everyday performance on the road.

This new wheel is lightweight (100g lighter than the former Ksyrium Elite despite its wider rim) and durable as ever thanks to our patented ISM4D technology. This manufacturing process removes all excess material between each spoke hole while keeping the rim wall thick enough where spoke tension and stress is the highest. Those rims are made in France, in our aluminum rim factory.
The double-butted spokes further reduce weight while making the wheel more responsive. These spokes also have a patented elliptical shape that can save 5 watts for added efficiency.

Stiffness is optimized using Fore technology. The upper bridge is not drilled, so it remains strong and rigid and doesn’t require the use of a rim tape (another 30g saved per rim). The rim bed’s new shape makes it easier than ever to mount and remove tires, and our UST Tubeless technology improves rolling resistance and grip while reducing the risk of punctures. Our new Infinity hub platform optimizes stiffness and power transfer with highly controlled spoke tension, while the Instant Drive 360 freewheel coupled with our automatic bearing preload adjustment (QRM Auto) delivers fast engagement and durability.
It's available for Shimano cassettes, and can convert to Campagnolo or SRAM XD-Road with optional driver bodies.

Rims

  • Material: Maxtal
  • Height: 22 mm
  • Brake track: UB Control
  • Weight reduction: ISM 4D
  • Tire: UST Tubeless and tubetype
  • Internal width: 19 mm
  • ETRTO size: 622x19TC
  • Fore tapeless tubeless technology
  • UST tubeless technology
  • SUP welding technology

Spokes

  • Material: steel
  • Shape: straight pull, elliptical aero, double butted (patented)
  • Nipples: Fore integrated aluminum
  • Count: front 18, rear 24
  • Lacing: front radial, rear Isopulse
  • Isopulse lacing design

Hubs

  • Front and rear bodies: aluminum
  • Axle material: aluminum
  • Instant Drive 360 freewheel technology
  • QRM Auto bearing preload technology

Versions

  • Freewheel: Shimano/Sram

Compatibility

  • Freewheel: Shimano/Sram, convertible to Campagnolo ED11, N3W and XD-R with optional driver bodies
  • Front axle: Quick Release only
  • Rear axle: Quick Release only

Compatible Adapters and freewheel bodies

  • ID360 Shimano / Sram Light freewheel body (V3850101)
  • ID360 Campagnolo freewheel body (V3440101)
  • ID360 XD-R freewheel body (V2580101)
  • ID360 Shimano / Sram freewheel body (V3430101 - Delivered on the wheel)
  • ID360 N3W freewheel body (V4270101)

Delivered with

  • BR301 quick releases
  • UST valve and accessories
  • User guide

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: 675bar/97PSI with a 23mm tyre - 38bar/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
ISM 4D light rim technology

ISM 4D light rim technology

Inter Spoke Milling 4 Dimensions An exclusive Mavic patented concept, ISM 4D significantly reduces weight and inertia without compromising durability Quicker accelerations, better handling and more resistance ; the right mix to make the most of any ride The smooth profile also helps reducing aerodynamic drag
Maxtal aluminum alloy

Maxtal aluminum alloy

Light and strong Exclusive to Mavic, this specific aluminum alloy offers a higher strength to weight ratio than conventional 6106 alloy
Fore tapeless tubeless technology

Fore tapeless tubeless technology

Stiffer and stronger Instead of being drilled, the lower rim bridge is pushed up on the inside, then threaded to enable the spoke nipples to be directly screwed in it, leaving the upper rim bridge intact
UST tubeless technology

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

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
Isopulse lacing design

Isopulse 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
QRM Auto bearing preload technology

QRM Auto bearing preload technology

Qualité de Roulements Mavic Auto Our 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
SUP welding technology

SUP welding technology

Stronger and smoother joint Soudé Usiné Process After bending, the rim joint is arc welded The welded seam is then milled for a smooth finish
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Valve
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