Well we have been doing some design work, not liking the wheel/tire set up on the ST4 we are having a polyurethane cast over a aluminum core to take the place of the standard wheel should have it by next week. The trick to it is the polyurethane is red.... I will post pictures when we get it. then we will test it before we would offer it to anybody else.
We are also talking about casting rear wheels as well......
We are also talking about casting rear wheels as well......