REGOLITH!
Why? you knucklehead!, you might ask. Well, it was my first year on my schools team, and our programmer managed to get our 85 lbs (regestered) to shove around full-weight bots with the trailer at right agles to their desirred movement.
Last year we got the replacement wheels for AM 8" mecano wheels, then made our own torch/bend aluminum faces for a whole lot less! The only issue was programming/wiring...... Plugged in declarations for Vics instead of Jags, and the whole thing went all wick-wacky at low speeds, but high speeds were just right.....
