Stan's ZTR 355 29-inch Disc Rim
A little heavier than the ZTR Olympic but also a little more stiff laterally and a bit more resistant to denting, the ZTR 355 is great for racing or light trail use. The ZTR 355 is inherently stiff due to the box style cross-section.
Occasionally used for cyclocross, the ZTR 355 29er can be used with rim brakes but it may make some noise and require the brake pads to be toed out. Also, the anodized finish will wear from the brake track over time.