The Pirelli MT 21 Rallycross Rear Tyre is part of the latest collection from Pirelli. It provides excellent off-road performance, even over long distances. This is a top-selling dual-sport tire in the U.S.A. and is designed mainly for off-road use. It is a dual-sport tire with 90% off-road and 10% on-road capabilities. The tyre is blackwall and has a 58P rating with the size 110/80-18.