So Rocky Mountain just released a new slayer that is 26+ compatible and had a set of 26x2.8 minions along with it (p. bike had the article I was looking at). It looks like my wish has been answered! Now to actually get my hands on a pair....
Would you please measure the Maxxis DHF Minion 26x2.8 tire diameter (ground to top of tire) and as an exact sidewall to sidewall as you can get. You are onto something good that's tubeless ready saving weight and increasing traction both. Good works-26x2.8 DHF Minions on 29mm. rims, works amazing
Mine are on 40i LB carbon rims. 14psi front and 18psi rear. Why would you use 29i when the minimum recommended is 39i?QUOTE]
Maybe because the manufacturers make more money selling new wider wheels, just like they make more money saying you need boost spacing, and then a new + fork, and then you of course need a whole new bike? They are very happy when we all listen and take their recommendations at face value without question.
I also found this in another thread, yes, only one opinion, but interesting (author ID is juice):
"I made the jump to the light-bicycle 32mm (inner) rims in January, and I'm already frustrated by them. There aren't any tires that work well. I'm talking about aggressive riding - big climbs followed by dh-ish descents. You know, mountain biking. I started paying attention and noticed on the DH world cup circuit no one is riding wide rims, and on the enduro races the top racers all went back to narrower rims. My experience: Minion DHF EXOs are too squared off, and I tear the side knobs on the front really fast. Fronts now wear out faster than the rears. Same with Specialized Butcher grids. I'm now trying a Magic Mary, but it's also squared off, but not as bad because it's huge. All the other good tires are similar to those above, and all square off too much.
I really noticed it when riding my DH bike with 24mm (inner) rims and DH Minion 2.5s. Wow, they really felt great in the corners when leaned over! It was fun! I had to run higher pressure, 27 psi, but at Whistler you don't want to go lower than that anyway. These narrower rims cornered better. I LOVE the stability of the 32mm rims on my trail bike, and the lower pressures feel great, but the cornering isn't as good as it should be, and knobs tear way too fast."
He's doing 2.5 inch wide tires (64mm) on a 24 mm internal width rim, exactly what I'm doing on the front with my 27.5. The tire to rim ratio is 2.7x. He's having more fun with a higher ratio. Don't worry too much about rim width.