What Our Gearhead(R) Experts Are Saying: "The Crossmax SL 29in Boost is perfect for XC riders who want a strong yet lightweight wheelset that boosts performance on climbs and technical sections. The ISM4D technology keeps the weight low for fast acceleration, and the 25mm internal width improves traction at lower tire pressures. The Fore technology eliminates the need for rim tape, which makes setting up tubeless a breeze. It's an excellent all-around wheelset that's durable and surprisingly affordable for the quality."The Mavic Crossmax SL 29in Boost Wheelset is crafted for cross-country riders who demand speed, control, and reliability on every trail. This high-performance alloy wheelset features Mavic's ISM4D technology, which strategically removes excess material to keep weight low without sacrificing strength, delivering faster acceleration and effortless climbs. With a 25mm internal width optimized for modern XC tires, it provides enhanced traction and control, even on rough, technical terrain. The innovative Fore technology creates a fully sealed rim that eliminates the need for rim tape, making tubeless setup quick and easy. Whether we're chasing podiums or pushing personal limits, the Crossmax SL is built to elevate every ride.