Elite Speed, Ultra-Lightweight XC Precision
The Mavic Crossmax SL Ultimate 30 29 Boost CL wheels are engineered for riders and racers who demand the absolute highest level of XC performance. With an exceptionally lightweight carbon construction and modern Boost spacing, the Mavic Crossmax SL Ultimate 30 29 Boost CL wheels deliver explosive acceleration, razor-sharp handling, and maximum efficiency during climbs, sprints, and technical trail sections.
Carbon Innovation for Peak XC Performance
Built using Mavic’s top-tier carbon technology, the Mavic Crossmax SL Ultimate 30 29 Boost CL wheels offer unmatched stiffness-to-weight ratio. The 30mm internal rim width improves tire support, enhances traction, and boosts cornering stability—perfect for today’s aggressive XC tires and technical race courses.
Boost Spacing & Center Lock Braking for Precision Control
With Boost 110/148 spacing, the Mavic Crossmax SL Ultimate 30 29 Boost CL wheels provide improved spoke angles, higher lateral stiffness, and more accurate steering response. The Center Lock (CL) rotor interface ensures ultra-secure braking performance, reduced rotor flex, and easier rotor installation for competitive riders.
29-Inch Momentum With Tubeless-Ready Efficiency
The Mavic Crossmax SL Ultimate 30 29 Boost CL wheels excel on modern XC terrain thanks to their 29-inch diameter, offering superior rollover capability, improved speed retention, and enhanced climbing traction. The UST tubeless-ready design reduces rolling resistance, increases grip, and minimizes punctures—critical advantages in race conditions.
| Specification | Detail |
|---|---|
| Wheel Size | 29″ (29-inch MTB) |
| Wheel Type | Crossmax SL Ultimate — lightweight, performance-oriented alloy wheelset |
| Hub / Axle Spacing | Boost spacing: 15×110 mm front, 12×148 mm rear |
| Brake Interface | CenterLock (CL) disc rotor mount |
| Rim Construction | High-strength alloy rim, designed for XC / trail / all-mountain performance |
| Tire Compatibility | 29″ MTB tires — suitable for mid-wide to wide tires depending on rim/tire combo |
| Intended Use | Cross-Country, Trail, All-Mountain / Performance MTB riding |
| Finish / Color | Standard alloy finish (typically black or dark finish) |
| Performance Focus | Lightweight build, strong hub engagement, Boost stiffness — suitable for aggressive riding with efficient rolling |



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