Originally Posted by chaadster
Just a couple of pics of my new Schwalbe Fat Franks on my Mt. Cycle Rumble. Took 'em for a quick spin yesterday, and am quite happy with them. They roll pretty fast, and offer a good deal of cushion (2.35" width) at 45psi. I'll take them down to the dirt jumps tomorrow and see how they do there and on hardpack singletrack, but really, most of their use will be "urban assault" type stuff, e.g. bombing stairways and playing around on low walls and the like.
I think your rims are rather narrow for those tires.
If you want to run fat tires, it's better to use the widest rims you can get.
Your rims will work
, but if you had wider rims, you could run lower pressures (which would absorb bumps better) but the tires would still handle well.
For a <200 lb adult, fat tires shouldn't need to be inflated much beyond 30 psi, if even that much
I weigh ~270 and built a motorized bike that weighs ~100 lbs. The wheels are steel Worksmans (cruiser-style rims, about 30mm inside width). The tires are 2.125 Kendas, and the pressures are still only 25/40 PSI front/rear.
The Fat Franks are a nearly-perfect tire.
I just wish Schwalbe would sell them without the printed logo and reflex strips, for those of us wanting to build retro-style bikes.
As it is, if you want them naked you gotta sand the unwanted printing off with a flap-wheel. :|