Originally Posted by
Shimagnolo
Force on the rim is determined by *two* variables:
1. Tire size.
2. Tire pressure.
e.g. a 2" tire at 100psi puts a lot more force on the rim than a 1" tire at 100psi.
Yea but,,,, nobody inflates fat cruiser bicycle tires to 100 PSI, so the rims they come with aren't really strong enough for it. Cruiser bike tires (2+ inches wide) don't need more than 30-40 PSI, even if they're rated for more.
Lots of people inflate 25mm tires to 100 PSI.
The 1.5" wide tires would be inflated to about 60 PSI, which is about all you want in a cheap single-wall rim (which is what 99% of cruiser bicycles come with).