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Re: [FTC]: FTC Wheels
If you're not powering the omni wheels its not critical they match in dimension to the ones being driven as they are basically acting as a caster wheel. So if your budget (and design) is only going with 2wd I would just get a couple more 3" wheels and call it done.
I would also say if you look at the teams who are most succesful they are using 4wd or more, I find them to be easier to control and provide better pushing vs 2wd. But that is for another debate.
I have seen the AndyMark traction wheels used here and they work extremely well, especially compared to the tetrix wheels in raw grip.
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