... 2000 CCC SONC Motorcycle tyre size 2.50-18 Size2.50-18Ply rating4PR/6PR/ ... 2.25-14, 2.25-16, 2.25-17, 2.50-16, 2.50-17, 2.50-18, 2.75-14, 2.75-17, 2.75-18, 2 ... .75-21, 3.00-8, 3.50-8, 2 ... .50-10, 2 ... 18, 4.50-10 4.50-12100/90-10, 110/90-10, 110/90-16, 130/90-15 ...