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Light where it matters with the right aero touch

ISM 4D rims maintain light weight while improving aerodynamics 21mm external width (17mm internal) for improved rolling efficiency and comfort

Race-ready responsiveness and added control

Stiff and strong Zicral spokes Isopulse lacing front and rear for increased wheel stability GripLink front tire for cornering grip, PowerLink rear tire for low rolling resistance

Better braking performance and rim longevity

Braking distances proven to be 18% shorter than average in wet or dry conditions Reduced rim wear for extra longevity and an all-black look that lasts for thousands of kilometers
All the best features of the Ksyrium Pro with the added benefit of our exclusive Exalith rim surface treatment. This wheel system delivers incredible versatility and all-rounder capabilities plus stunning looks and braking performance.

Exalith is a special chemical treatment that penetrates deep within the aluminum rim material for multiple benefits. First, the rim is reinforced, notably at the brake track, so there’s very low wear over time. Braking power is greatly improved, reducing stopping distances by up to 20% compared to traditional aluminum rims, in both dry and wet conditions. Specific Exalith brake pads ensure quiet braking and limited wear. The rim has a stunning all-black finish that lasts for thousands of kilometers.

We use Fore drilling to keep the rim light and strong, plus Zicral spokes that are stiffer and lighter than traditional steel spokes. Isopulse lacing improves stability and stiffness under high loads, and a new wider rim (17mm internal width) features ISM 4D technology (Inter Spoke Milling) to further reduce weight to just 405g. Excess material is removed from the lower bridge and sidewalls, so the rim is super light but still strong.

Matching Yksion Pro tires, specifically designed for front and rear use, offer an ideal balance of efficiency, grip and light weight. Made with a supple 127 TPI casing, they weigh only 205g in 25mm. The Ksyrium Pro Exalith system is available with 23mm or 25mm tires.

Weight

  • 630 grams (Front)
  • 1475 grams (Pair)
  • 845 grams (Rear)

Rims

  • Material: Maxtal
  • Height: front 24mm, rear 26 asymmetrical
  • Joint: SUP
  • Drilling: Fore
  • Brake track: Exalith 2
  • Weight reduction: ISM 4D
  • Valve hole diameter: 6.5 mm
  • Tire: clincher
  • Internal width: 17 mm
  • ETRTO size: 622x17C
  • Fore
  • Exalith 2
  • SUP

Spokes

  • Material: Zicral
  • Shape: straight pull, bladed, double butted front and rear non drive side
  • Nipples: Fore integrated aluminum
  • Count: front 18, rear 20
  • Lacing: front radial, rear Isopulse
  • Isopulse

Hubs

  • Rear body: aluminum
  • Front body: carbon with aluminum flanges
  • Axle material: aluminum
  • Adjustable sealed cartridge bearings (QRM+)
  • Freewheel: FTS-L steel
  • FTS-L
  • QRM+

Tyre

  • Yksion Pro GripLink (front) & PowerLink (rear)
  • Front and Rear Tread: Single Compound
  • Casing: 127 TPI
  • Breaker: Front Kevlar, Rear polyamide
  • Dimension: 25-622 (700x25c)

Versions

  • Color: Black only

Compatibility

  • Freewheel: Shimano/Sram, convertible to Campagnolo with optional driver body
  • Front axle: Quick Release only
  • Rear axle: Quick Release only

Compatible Adapters and freewheel bodies

  • FTS-L Shimano / Sram freewheel body ([L30871100] - Delivered on the wheel)
  • FTS-L Campagnolo freewheel body ([L30871200])

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 doesnn't exceed 120kg, bike included
  • Recommended tyre sizes: 25 to 32 mm
  • Max. Pressure: see indication on wheel and tyre. If they differ, use the lowest of the 2
  • Max. Pressure: 23mm 8.7 bars - 125 psi, 25/28mm 7.7 bars - 110 psi

Efficiency & Rigidity

  • GripLink
  • PowerLink

Delivered with

  • BR601 quick releases
  • Exalith brake pads
  • Multifonction adjustment wrench (delivered with rear wheel)
  • User guide
ISM 4D

ISM 4D

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

Maxtal

Light and strong Exclusive to Mavic, this specific aluminum alloy offers a higher strength to weight ratio than conventional 6106 alloy.
Zicral

Zicral

Light, stiff and strong A specific aluminum alloy that provides spokes with higher stiffness-to-weight ratio while being stronger.
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