Bridgestone Battlax Racing Street RS12 Rear Tire 190/55ZR17 75W Radial TL, Part Number 21250

The Bridgestone Battlax Racing Street RS12 tire is the most aggressive Hypersport tire in the Bridgestone lineup. Whether you are carving canyons or hitting your favorite track’s apex, the RS12 is engineered for riders who want incredible track-day performance without committing to slicks. The RS12 tire is engineered for impressive dry grip, confident handling, with visually striking sidewalls and tread. This delivers a tire that was designed for fast and consistent lap times while accelerating your enjoyment on both the circuit and the street.

The Bridgestone Battlax Racing Street RS12 rear tire is a high-performance hypersport tire designed for riders who demand confident dry grip and responsive handling on both the street and the track. This 190/55ZR17 75W radial tubeless tire combines race-inspired technology with road-ready performance, making it well suited for canyon riding, spirited street use, and track-day sessions where consistent feedback and predictable control are essential.

Built with Bridgestone race tire compound technology, the Battlax Racing Street RS12 is engineered to deliver strong traction during acceleration, braking, and cornering. The wide shoulder uses an advanced race compound to help drive the motorcycle out of corners, while the redesigned slick-style shoulder supports a larger contact patch than the preceding RS11 tire. This combination helps riders maintain confidence as lean angles increase and performance demands become more aggressive.

The RS12 also features a racing-inspired appearance with visually striking sidewalls and a streamlined tread design. Its construction is developed to support fast, repeatable lap times without requiring a dedicated slick tire, allowing riders to transition between track and street riding with a single performance-focused rear tire. The Bridgestone Battlax Racing Street RS12 rear tire is identified by manufacturer and vendor part number 21250 and is engineered for riders seeking a direct, stable, and consistent feel throughout demanding rides.

Features:

• Maximum Dry Grip: Bridgestone race tire compound technology helps provide strong dry traction and durability for both track-day and street riding.

• Corner Exit Performance: The wide rear shoulder uses an advanced race compound to help deliver confident drive out of corners.

• Consistent Lap Times: Compounds developed through endurance racing experience help support fast, repeatable performance lap after lap.

• Racing-Inspired Design: A redesigned slick-style shoulder provides a purposeful racing appearance and helps increase the contact patch compared with the preceding RS11 tire.

• High-Performance Construction: The radial tubeless design is engineered for responsive handling, stability, and predictable feedback during aggressive riding.

• Fitment and Identification: Rear tire size is 190/55ZR17 with a 75W speed rating; Bridgestone manufacturer and vendor part number is 21250.