Battlax Racing Street RS12. Bridgestone Corporation (Bridgestone) announces the premium sports motorcycle tire - the Battlax Racing Street RS12. Experience track-ready performance every time you ride. The RS12 is engineered with advanced race-bred technology, delivering exceptional dry grip, confident handling and the ability to maintain consistent lap times, run after run. Its aggressive design maximizes traction at high lean angles providing outstanding grip and performance. Under the concept of "From Circuit to Street," by incorporating race tire technology, the Battlax Racing Street RS12 delivers the highest level of dry grip performance in the road-legal tire lineup of Battlax. The Battlax Racing Street RS12 is Bridgestone's sportiest road-legal tire ever made. Key Technologies Featured in the Battlax Racing Street RS12: