215/40R18 Nexen N'Fera SU1 UHP 89Y XL Passenger TireNexen N Fera SU1 215 40R18 89Y XL OVERVIEW Nexen's N Fera SU1 is an ultra high performance tire that's built for use on performance oriented coupes and sedans in warmer weather conditions, and features stiff shoulder blocks that maximize cornering performance. Backed by a 25,000 mile limited manufacturer tread life warranty, the N Fera SU1 utilizes optimized split surface siping to increase traction and grip on wet and dry roads that are common during