Metzeler Racetec RR Slick Super Soft Rear Tyre 190/60 R-17 NHS K0 TubelessFront compounds One of RACETEC RR SLICK's most distinctive feature is its versatility of use on a wide range of asphalts and temperatures. For this reason, front tyre compound choice should be made depending on whether the rider prefers higher stability and precision when entering the corner (K2 version) rather than predictability and edge grip feeling (K1 version). Predictability in racing tyres is the capability to alert the rider when the limit of