These are our favorite mixed terrain tires and are a perfect choice if your rides have a good portion of both road and trail sections. Cazaderos have a smooth center tread so there's minimal buzz on the road but they do have some side lugs so cornering on dirt isn't a total gamble.
Only available in 42 and 50mm for now.
For Rivs we recommmend:
Sams n Homers - 42mm
Atlantis, Appaloosa, Clems, and Platypuses (it is not "platypi")- 50mm
Susie/Gus- 50mm will work but you'll be at the skinny end of what the frames are designed for, so don't pedal thru corners.