There are wheels that use flow formed technology and HLT are lighter than cast wheels and stronger than cast and cheaper than forged.
http://www.tirerack.com/wheels/tech/techpage.jsp?techid=90Next how much can diameter increase destroy a cars track times? Like going from 215/45r17 on this brz with DZII to 245/40 R18 DZII'S appeared to here:
http://www.roadandtrack.com/car-culture/a18334/scion-fr-s-tire-transformation/So all things equal how much of a tire width increase would you take for an addition of weight and I see what the 200tw tires forces you to increase wheel diameter to get into 275 and greater width tires.
