Michelin Pilot Sport Cup 2 345/25R21 104(Y) XL

The Michelin Pilot Sport Cup 2 R ZP is a run-flat track and competition tire designed to maximize performance and reduce lap times. It features a high-traction tread compound and an asymmetric tread pattern with reduced void areas for improved dry grip. The massive outboard shoulder and narrower circumferential grooves create wider tread ribs for increased rubber contact. It also incorporates deeper lateral notches in the inner shoulder for wet traction. This tire is aimed significantly at dry surface performance and adds the safety of a zero-pressure run-flat.

The 345/25R21 tire has a diameter of 27.8 inches, a width of 14 inches, and mounts on a 21-inch rim. It weighs 33 lbs, has a max load of 1984 lbs, a maximum air pressure of 50 psi, and a tread depth of 5/32 inches. It is intended for use on a rim width of 12-13 inches and has 749 revolutions per mile.