Quote:
Originally Posted by jamesqf
Why not go with a tire with the same sidewall height on a larger diameter rim? (Assuming you can find them, of course.) If you look at antique cars up to say the 1930s, before there were a lot of paved roads, you see that that's what most of them have: basically skinny tires on very large diameter rims. Maybe they knew something.
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I could be mistaken, but I think that was more due to a lack of tire technology and the fact that super tall skinny wheels had always been used on carriages and horse drawn wagons. I would assume load bearing, and ease of clearing obstacles was priority number one.
In addition, a taller wheel leads to less sidewall... And in order to air down for driving off road, there needs to be more sidewall to allow for a greater contact patch to occur without slicing the rubber with the sides of the wheel. I believe the recommended aspect ratio for sidewall is +80% when airing down tires.
~C