For the years I have been on the team, I think we've used 6-6.25in diameter, 2in wide (80, but it might be 60 durometer solid rubber tires). Most years they've had treads, but for FIRST Frenzy they were smooth.
On a side note, I don't think we've ever tried to pull a vehicle with our robot...but
, There's a whole season ahead of me and a spiffy idea to try out...was the van in or out of gear at the time of the pull?
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Originally Posted by Andrew Blair
We use an wheel typically used in elevators to keep the car on track, with a modified rubber compound. They are some of the grippiest wheels you can get for the carpet, but I don't know how'd they be against those racing tires!
Heres an example: Two years ago (using the same wheels and a 120lb bot), we pulled a minivan (Caravan?) on worn smooth pavement with no problems or slip.
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