Yeah, sand get's into the tires and makes them out of balance...the rims are the KMC replica hex mount rims...not sure if they are warped. I think an easy fix would be putting some putty stick'em stuff on the inside of the rims to help with the balancing...someone mentioned something I could get at WalMart, like blue tack or some stuff to hang pictures on walls or something...I can't remember, but I'm sure this is something I'm going to have to adjust frequently because dirt just gets inside the tire here all the time.

I don't know if after I put putty on to balance if it would last long, for example if during the first race, the dirt shifts making the wheel more wobbly.

I'm assuming the b44 hubs also fit the t4.1 as we have the same wobble issue on a t4.1 and another SC10 rs I need to address.

BTW, we don't wash our tires...I blow everything off with a compressor after racing each night.