WTB is offering a rim/rim design described as conforming to a standard, the Tubeless Compatible System. The rim has a rounded well over the spokes along the center. Is this rim incompatible with clincher tires and tubes? And is there anything special here compared to other tubeless designs?
Here's the description: https://www.wtb.com/pages/tcs
Here's what they say:
Our TCS™ (Tubeless Compatible System) technology is the solution for riders seeking high performance, lightweight and durable mountain bike wheel systems that are easy to install, fun to ride and simple to service. TCS tires are the first sealant tubeless tires to receive Mavic UST® certification, which means a proven fit between sealant tubeless tire and rim. Say goodbye to air compressors, tire levers and pinch flats. Say hello to your full riding potential.