Our in-house MT rim is short simply for "Mountain". Only a few years ago, the MT rim would generally be categorized as an all-mountain type rim, given it's weight (565g), width (22mm inner), and strength (it's super strong). With towards modern push towards wide, "XC" now can be 24 or 25mm inner. The fact that modern XC is much wider than yester-year's All Moutain illustrates just how far the world of MTB has come.
These wheels are great all around type 26" MTB disc wheels. If you exclude the hub set from the conversation, they're not boat anchors. They will feel and perform lighter than what the listed weight portrays. It's a quality rim, wide enough to run 2.5" tires without question, but still narrow enough if you want something more XC-ish, like a 1.95" tire. Quality spokes, and Shimano XT hubs round out the rest of the wheel spec. They will look and feel great, and will hold up for the duration.
Front 32 hole black (approx.) 1050g
Rear 32 hole black (approx.) 1230g
*Wheels will ship for free (US-48 states only) with BWW 17mm rim tape and QR levers, thanks for looking.