with Stan's Archer 29s are a PAIN to mount. So much so that these tires are going back. I will say that I did see the previous postings on a tight fit/difficult mounting with Stan's, but I thought they might just have had bad luck. I've mounted many dirt bike tires on very tight rims and these are every bit as hard. With a relatively delicate rim and finish that I want to protect, I just wasn't in the mood to leverage THAT hard to mount these babies. Too bad.