I'm looking at the Jamis Dragonfly 26+. It has 26x3.0 tires on 27.5 rims. How does a 26 inch tire of any width measure out to 27.5 diameter? What am I missing here?
PLUS
A 27.5x3" tire measures out to a 29" diameter and a 26x3" tire measures out to a 27.5" diameter. Combining them with a 40mm rim, results in the ultimate combination of traction, roll-over and versatility without being too heavy, too bouncy, too tall or feeling lethargic on the trail.
https://www.jamisbikes.com/usa/dragonfly26pro.html
PLUS
A 27.5x3" tire measures out to a 29" diameter and a 26x3" tire measures out to a 27.5" diameter. Combining them with a 40mm rim, results in the ultimate combination of traction, roll-over and versatility without being too heavy, too bouncy, too tall or feeling lethargic on the trail.
https://www.jamisbikes.com/usa/dragonfly26pro.html