{"product_id":"120-70-zr17-58w-bridgestone-battlax-s21","title":"120\/70 ZR17 58W Bridgestone Battlax S21","description":"\u003cp\u003e\u003cspan\u003eThe Battlax S21 is engineered as a hypersport road tyre that combines multi compound chemistry, advanced carcass construction and optimised tread design to deliver stable, predictable performance at high speed. Its development focuses on improving cornering precision, dry surface grip and wear efficiency while retaining dependable behaviour in wet conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe S21 builds on Bridgestone’s established sport tyre technologies, using a combination of high tensile reinforcement materials, spiral belt construction and temperature stable compounds to maintain consistent performance across a wide operating range. The tyre is designed to give riders sharper steering response, improved edge grip and increased mileage compared with earlier generations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eHigh Tensile Cord Construction (HTSPC)\u003c\/strong\u003e The carcass uses high tensile steel filaments insulated within rubber to improve heat transfer and maintain structural integrity under load. This supports high speed stability and reduces the likelihood of deformation during aggressive acceleration or braking.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMono Spiral Belt (MS Belt)\u003c\/strong\u003e A continuous, lightweight belt is wound around the tyre to control growth at speed and stabilise the contact patch. This construction enhances straight line stability and gives the tyre a more consistent feel during rapid direction changes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e3LC Front Compound\u003c\/strong\u003e The front tyre uses a three zone compound layout to balance braking stability with edge grip. A firmer centre compound supports stability under load, while softer shoulder compounds increase adhesion at lean.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e5LC Rear Compound\u003c\/strong\u003e The rear tyre incorporates a five zone compound structure with three functional compound types. This arrangement provides a durable centre for mileage, intermediate compounds for drive grip, and softer outer compounds for maximum traction at high lean angles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSilica Rich EX Compound\u003c\/strong\u003e Increased silica content improves wet surface adhesion and reduces the drop off in grip at lower temperatures, supporting more predictable behaviour in variable weather.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eRC Polymer Technology\u003c\/strong\u003e The compound uses RC Polymer to improve silica dispersion and maintain tread flexibility across temperature changes. This enhances road contact consistency and can contribute to reduced rolling resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNanoPro Tech\u003c\/strong\u003e Nano scale compound engineering reduces internal friction and heat build up, helping the tyre maintain grip while extending wear life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMileage Efficiency\u003c\/strong\u003e The S21 is designed to deliver significantly improved wear performance compared with its predecessor, offering increased service life without compromising handling precision.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical Summary\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Battlax S21 is built for riders who want sharper steering, stronger edge grip and stable high speed behaviour without sacrificing everyday usability. Its combination of multi compound technology, advanced reinforcement materials and optimised tread design provides a tyre that maintains performance across repeated heat cycles and varied road conditions. The result is a hypersport road tyre engineered for consistent, predictable performance and extended mileage.\u003c\/span\u003e\u003c\/p\u003e","brand":"Bridgestone","offers":[{"title":"Default Title","offer_id":57709663879550,"sku":"1207017BS21ZRTL","price":121.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9191\/9742\/files\/S21_ee41ca67-3ccf-41c2-95ca-2ef214d281ac.png?v=1781345887","url":"https:\/\/www.motobench.co.uk\/products\/120-70-zr17-58w-bridgestone-battlax-s21","provider":"MotoBench","version":"1.0","type":"link"}