I put the N2 spec Cup 2 tire (GT2RS spec) on my 918 and it certainly has a lot more grip than the original N0 spec eco Cup 2 tires that the 918 came with.  Tire technology has certainly improved over the years and while the Cup 2 all look the same from the outside, the compound and the sidewall stiffness varies from generation to generation. 

The N2 spec Cup 2 is a lot stiffer in sidewall construction than the N0 spec.  I can feel the bump a lot more now in the 918 than before. 

 


--