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CROSSMAX SL ULTIMATE 30 29
At only 1380 grams, this is the wheel that performance-obsessed cross-country racers dream of. Developed with input from top pro racers seeking a competitive advantage at World Cups and Olympics, it features an ultralight full carbon 29” rim (360g) for fast acceleration and climbing without compromising stiffness and durability.

Adaptive layup, a specific carbon layup technology enabled us to handcraft these carbon rims with less material between the spokes. The spoke holes are reinforced with strategically positioned carbon layering in a process that minimizes weight without compromising stiffness and strength. A lighter rim means faster acceleration, more efficient climbing, and a more responsive feel on the trail. The external carbon layer features our new UD² construction for a distinctive look and added durability.

Extensive field testing with our pro athletes determined that a 25mm inner width was ideal for a quick, precise ride quality and optimized tire grip on fast racetracks. For more technical trails, some preferred a 30mm width for added control, so we created two options. It’s your choice, and you can mix the two if you want. You could choose the Crossmax Ultimate 25 for the rear to boost acceleration and efficiency, and the Crossmax Ultimate 30 for the front to add confidence and control on rugged single-track.

The carbon rim is laced with 24 straight-pull double butted spokes (same spoke length throughout), two-crossed for maximum power transfer and enhanced vertical compliance. The new lighter Infinity hub design optimizes lateral stiffness, and the spoke lacing maximizes power transfer. Our Instant Drive 360 freewheel with a double ratchet system provides fast engagement and high stiffness to help you accelerate out of corners faster. The rear hub is compatible with Shimano HG9, Micro Spline and SRAM XD driver bodies.

The Crossmax SL Ultimate 30 is available with 6-bolt or center lock brake rotors in 29” only and is compatible with a 15x110 front axle and 12x148 rear. It comes with valves, spare spokes and MTB wheel covers.

Main features

Fly up climbs and accelerate faster

New carbon Adaptive layup technology shaves 70g per rim. 25mm wide rim weighs only 340g.

Stiff and smooth ride quality

Special carbon rim layup for superior rim stiffness and added control on descent. Double-butted, two-cross spoke pattern for enhanced vertical compliance.

Efficient power transfer

New lighter Infinity hub design paired with 24 straight-pull spokes for improved stiffness and better balanced spoke tension.

Specifications

  • Weight Pair : 1395 g
  • Weight Front : 635 g
  • Weight Rear : 760 g
  • Material: 100% carbon fiber with UD external layer
  • Height: 25 mm
  • Internal width: 30 mm
  • Drilling: traditional (front/rear 24 holes)
  • Braking: disc
  • Profile: asymmetrical and hookless
  • ETRTO size: 622x30TSS
  • Tire: UST Tubeless Ready - Use with Mavic Tubeless Tape
  • Material: steel
  • Shape: straight, extra-flat, constricted, antirot (front and rear)
  • Nipples: aluminium, black
  • Lacing: crossed 2 (front and rear) 
  • Body material: aluminium
  • Body design: INFINITY
  • Disc standard : 6 Bolts or Center Lock®
  • Axle material: aluminum
  • Axle size: front 15x110 / rear 12x148
  • Freewheel technology: Instant Drive 360
  • Freewheel: Shimano MS / Sram XD MTB
  • Bearing technology: QRM automatic setting - sealed cartridge
  • Freewheel body: convertible SHIMANO HG MTB aluminium (kit V3780101 sold separately)
  • Freewheel body: convertible SHIMANO HG MTB steel (kit V3790101 sold separately)
  • Front axle adapters: 15x110 convertible to 9x110 (kit 99694101 sold separetly)
  • Front axle adapters: convertible to 15x31mm with Torque Cap (kit V2374401 sold separetly)
  • Rear axle adapters: 12x148 convertible to 9x141 (kit V2510801 sold separetly)
  • User guide
  • Wheel cover
  • Rim tape mounted on wheel
  • UST valve not mounted on wheel
  • 2 replacement spokes with each wheel
  • Multifonction adjustment wrench with the rear wheel
  • ASTM CATEGORY 3 : CROSS COUNTRY
  • For a longer longevity of the wheel, Mavic recommends that the total weight supported by the wheels doesn't exceed 150kg, bike included
  • Maximum tyre pressure: 2.35bar/34PSI with a 52mm tyre - 1.25bar/18PSI with a 125mm tyre
  • Recommended tire sizes: 50mm to 76mm (2.0 to 3.0)

Key technology

Efficiency RigidityInstant 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.
LightnessAdaptive Layup Carbon technology
Lighter carbon rim construction for faster acceleration and more efficient climbing.The Ultimate CrossCountry racing application : light and responsive.
Safety ReliabilityQRM 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.
Safety ReliabilityInfinity hubs

User guides and documents

General User GuideDownload PDF
FreewheelDownload PDF
AdaptateurDownload PDF
Rim tape User GuideDownload PDF
Rim tape User GuideDownload PDF

CROSSMAX SL ULTIMATE 30 29