Nextie make a extremely wide selection of carbon rim for both road, Cyclocross, MTB and Fat Bike and sometimes it can be tricky to choose between them.
The pictures below are both 50mm deep with a gloss finish and Black Nextie logo.
The differences are:
NXT50C02 is 23mm wide and a standard clincher rim, the shape of the rim is slightly more angular
NXT50C07 is 25mm wide and tubeless clincher rim, the rim profile is more rounded.