Kumho Ecsta LX Platinum KU27 All-Season Tire - 225/40R18  92Z Asymmetric tread design optimizes all-season performance Four circumferential channels efficiently evacuate water to maximize wet grip Waffle design sipes remain fully interlocked to deliver high G-force braking Stress relief dimples provide maximum sipe opening for linear snow traction without compromising lateral grip Jointless nylon cap construction provides lower vibration and enhanced ride comfort