The toughest performance tyre of them all has had a makeover. The new all new Evolution of our ultra-durable road race tyre with enhanced puncture protection has arrived. The Race D Evo4s new “All Contact Tread Shape” has been re-engineered to accommodate wider rim widths to continue to deliver superior grip and lower rolling resistance.Panaracer’s new ZSG Compound further reduces the low rolling resistance of the previous ZSG compound by 10%. In addition, grip in all weather conditions has been improved by 20% over the previous generation. We’ve further enhanced the ZSG compound by significantly increase the compound’s resistance to cuts out on the road. FEATURESZSG Advance Compound,All Contact Tread Shape,Advance Alpha Extra Cord,3D Double Dipped Casing,Bead: Folding,Sizes: 700 x 25c / 700 x 28c,Weight: 240g / 260g,Colours: Black/Black & Black/Brown,Also available Race A Evo4 (All-Round) & Race C Evo4 (Classic),Made in Japan.