A few of us at the store have been riding the Ibis 741 and 941 carbon mountain bike wheels as a light weight, ultra durable upgrade this season. Tubeless ready right out of the box, the wheels are designed to improve performance all the way around: lighter for quicker acceleration, wider for improved handling, hookless rim for greatly improved durability (click link below for more on these wheels and the hookless rim concept). The rim width is 41mm, the widest on the market. Typical mountain bike rim width is 26mm. The greater rim width increases the mounted tire volume and changes the tread angle, which results in noticeably better traction and the ability to run a lower pressure. The 741 are 27.5″ wheels and 941 are for 29″ wheels.
Overall weights for the pair: 1650 grams for the 27.5″ option, 1770 grams for the 29″ option. Both are available with a 15mm thru axle front (no adapter options for other sizes) and 142+ 12mm thru axle rear (adapters available for 135x10mm axles).
Price: $1299 for the pair, including tubeless tape and valves
Click here for more info from Ibis.