Boasting an increased mileage of 36% on a test BMW S1000RR compared with the S20, the new S21 is the top choice for a sports road tyre. Designed and developed to get the best out of latest hypersport machines. Battlax Hypersport S21 delivers the thrill of riding in any conditions. An awesome mix of acclaimed technology and completely new features have been used to define the highest performance with no compromise on safety and pleasure. Total dry-performance package including superb abilities in stability, handling and precision Feel the excitement of riding on winding roads with the extra cornering grip that S21 is offering Increased Mileage of 36% Based on internal test results compared with the Battlax Hypersport S20EVO at the Bridgestone Technical Center Japan Vehicle : BMW S1000RR Sizes: 120/70ZR17 190/55ZR17 - Pressure: 2.50 kPa front, 2.90 kPa rear Fits: Ducati 906 Paso 1988-1990 Honda CB250 HORNET 1996-2001 CB600 F HORNET 1998-1999 CBR900RR FIREBLADE 1992-1999