[creeper]

yeah i've read some mixed reviews on the sumi's as well. people also say sigma's and riken's are decent too but i can't even find those. every tire i find either has 10 reviews saying they're amazing and then 10 reviews saying they're awful or they don't make it for my size.

and the sidewall on most drag radials is thinner so it can crinkle more on the launch. road race tires have thicker/stiffer sidewalls so that they don't fold in hard turns. for example the 555 IIR is the same compound and everything as the 555R it just has a thicker sidewall so it's more suited for road racing.