I have a Koxx One hub in my 26" Nimbus II frame. The bearings fit snug, but it’s not a problem. I built the wheel with a Mavic D521 rim and am using a 26x2.4 Holly Roller tire. The D521 is fairly narrow so I wouldn’t put anything wider than a 2.5 on it. It looks good though and is light and plenty strong for the XC riding I use it for. I also like the fact that I can swap the 110 cranks from my 20" when I want a little more speed.