To cut to the chase on installing a wider rim tire, onto a thinner rim is SAFETY. The air pressure you need to get it to seat, is much, MUCH higher, than what the tire is rated. (Maybe not every single time, or application. ) I used to run a 150 tire for a 4.0 rim, onto a 3.5 rim. (Stock tire was 130) No shop would mount it for me. Was never told why. (I wish they did.) So I did it myself, at my job, after hours.
I did this often. Had I been aware of the danger, I wouldn't have done it. Not worth the risk.
I get the conversation about going to a wider tire, for same rim width. Just alerting you that, you really don't want to squeeze a wider rim tire, to a thinner rim.
Last futzed with by GAU-8; October 8th, 2019 at 01:47 PM.
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