We use these as control tires for M-chassi racing at our track. We race on carpet and they offer great grip combined with long lasting wear, the rims are strong also. They also keep cost down as they are cheap.
i have been racing with these tyres for some time and they are superior to the stock m-chassis tyres when used on smooth well kept tarmac or carpet, they offer very consistant grip and are exelent value,the rims are nice and lite and are very strong too. i would sugest that these would be the perfect control tyre for m-chassis racing clubs . they last for ages too and only need a little suntan lotion to keep them in tip top condition.all in all an exelent product at a great price.