While I was at the Colorado Freeride Festival, which was also the only US event stop for the Enduro World Series, Mavic's Public Relations wizard Mavic Zach walked me through their Enduro product lineup.
Crossmax Enduro Wheels
The front wheel has a 23mm inner rim width, and 24 spokes, which are laced in a two-cross pattern, which all help to give the wheel beefiness and stiffness, to deal with the extreme loads from cornering and braking forces. The rear wheel has a narrower 19mm inner rim width, and 20 spokes, laced radial on the drive side and 2-cross on the non-drive (their Isopulse design), which helps with weight savings and gives a quicker response. The rear free hub body is their ITS4 system, which utilizes a 4 pawl design, with 2 pawls operating in opposition to each other at all times, and engages at 7.5 degrees for a good POE.
They both use straight pull and bladed Zicral alloy spokes, which are lighter than stainless steel, and aren't as stretchy, which produces a stiffer wheel. To save weight on the rims, they use interspoke milling or ISM construction, which means they subtlety shaved off material between the spoke insertions, which saves 15-20 grams per rim. They also use the Fore drilling technology for the nipple insertions, in which a super-hot drill bit pushes a tunnel of metal into the lower rim bridge, which is then threaded, and this technology doesn't propagate into the outer rim bed, so everything is airtight and no rim tape is required.
The wheelsets comes with large aluminum axles and all the required adapters, so you can run 15 and 20mm in front, and QR, 12x135 and 12x142 in the rear.