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The rollers ride directly on the rim. What happens when one or more of them lock up from getting wet/dirty? How much does it cost to retrofit or even repair/replace? And those tires look very out of round.
It would be cool to get this stuff to a fully working/durable stage, but I see too many weak areas in the engineering. Bearing surfaces worry me in this application because there is no way to keep them clean/lubed.
This is screaming "prototype" to me so loudly I can hardly hear anything else.
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1991 F-250:
4.9L, Mazda 5 speed, 4.10 10.25" rear
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