This is the 180/55ZR17 rear in the Bridgestone Battlax Hypersport S23 line, Bridgestone item number 15926. The S23 is Bridgestone's current sport tire for street use, launched in January 2024 as the successor to the Hypersport S22. Bridgestone builds it for riders on modern sportbikes who want strong grip at high lean angles on the road, with wet-weather performance kept in the design.
180/55-17 is the stock rear size on most of the current 600-class sportbikes.
If your riding leans toward regular track days, Bridgestone's Battlax Racing Street RS12 is their track-and-street tire.
Key Technology & Design
New edge compound
Bridgestone gave the S23 a newly designed compound at the edge of the tread, aimed at grip and feel when the bike is leaned far over.
Pulse Groove tread pattern
The rear uses Bridgestone's Pulse Groove pattern, which Bridgestone says moves water away more effectively and improves grip and stability in the wet.
Silica Rich EX compound
The rear carries Bridgestone's Silica Rich EX compound, their higher-silica rear formulation.
Versus the S22
Bridgestone states that in their own testing on a YZF-R1 and an S1000RR, the S23 set quicker lap times than the S22 in both wet and dry conditions, and that the S23 rear wears 8% better than the S22 rear.
This is the 180/55ZR17 rear in the Bridgestone Battlax Hypersport S23 line, Bridgestone item number 15926. The S23 is Bridgestone’s current sport tire for street use, launched in January 2024 as the successor to the Hypersport S22. Bridgestone builds it for riders on modern sportbikes who want strong grip at high lean angles on the road, with wet-weather performance kept in the design.
180/55-17 is the stock rear size on most of the current 600-class sportbikes.
If your riding leans toward regular track days, Bridgestone’s Battlax Racing Street RS12 is their track-and-street tire.
Key Technology & Design
New edge compound
Bridgestone gave the S23 a newly designed compound at the edge of the tread, aimed at grip and feel when the bike is leaned far over.
Pulse Groove tread pattern
The rear uses Bridgestone’s Pulse Groove pattern, which Bridgestone says moves water away more effectively and improves grip and stability in the wet.
Silica Rich EX compound
The rear carries Bridgestone’s Silica Rich EX compound, their higher-silica rear formulation.
Versus the S22
Bridgestone states that in their own testing on a YZF-R1 and an S1000RR, the S23 set quicker lap times than the S22 in both wet and dry conditions, and that the S23 rear wears 8% better than the S22 rear.
