[WarrantyTracker]

I'm running a square set of BMW 219 rears for track wheels. They are 18x9.5.

I'm finally ready for some step-up tires, according to my instructors. Lack of traction on summer street high performance tires has become a limiting factor for me.

My thoughts turned immediatedly to Nitto NT-01s, until I checked sizing. There is nothing between 275 amd 245. Yes, either tire will fit on a 9.5-inch rim but based on field reports the 275 will probably bulge and the 245 will probably stretch. Either way, handling reportedly suffers.

Conventional wisdom suggests wheel width for track use should be 100-110% of tread width, so I'm looking for 255s or 265s.

One option would be BFG R1s in a 265.

Another direction would be the Nitto NT-05s which are available in 255 and 265. But I'm not sure how much of a step up those would be over any other summer street high performance tire. Though they would be a step-up over the Sumitomo HTR IIIs I'm using now.

R888s are available in more sizes but I'm not interested in something that soft.

Any experience would be appreciated.