I use the K1 front and K2 rear on my RC51. My track day provider no longer sells Pirelli. I like them. They stick, wear evenly and last a long time. I am not fast but not slow. I am at the top of the advanced group but bottom third of the expert group.
Thanks..I know most use Pirelli as Metzeler is a little more obscure or old school for most..I know Pirelli owns Metzeler but there are differences between the SC V2 and the K3 as I have used both..The K3 is cheaper and lasts longer and lasts longer so far on the street. Just curious to see if this carries over to the
SC2 vs K2 and SC1 vs K1...I would imagine they aren't identical..