Bridgestone has reengineered the design and added new-formula compounds to upgrade the performance of its Battlax range, now showcased in its newest tyre: the Battlax Racing Street RS10.
Displayed at the Intermot fair in Cologne, 1st to 5th October, this new Battlax sports radial – replacement of the Battlax BT003RS – now offers enthusiasts sportier handling and more control with faster acceleration out of corners, enhanced steering response, greater line-holding precision in corners and confident braking stability, particularly on dry surfaces. Specially-formulated compounds are strategically located for sure grip on low-friction.
“The aim is to produce high-performance radials for enthusiasts of super sports and the latest naked street bikes who love the open road but occasionally take their machines to the racetrack.
Bridgestone’s upgraded Battlax RS10 gives them the high grip, high performance to explore higher levels of excitement and control” says Jake Rønsholt, Managing Director Consumer Business Unit, Bridgestone Europe.
MotoGP™ analysis techniques
To raise dry-surface grip and performance levels, while maintaining current wet performance levels, Bridgestone engineers concentrated on RS10’s contact area, grip level, stability and damping, in a total reexamination of current designs and construction.
Firstly, the contact area was improved through the development of new front and rear patterns featuring an extra-long pitch design with grooves aligned in the direction of forces acting on the tyre during cornering, using analysis techniques developed in Bridgestone’s MotoGP™ programme. This design increases block stiffness and adds more stability and predictable behavior, leaving the rider with a confident feeling of stability on the brakes and in the acceleration phase.
This cornering stability is further enhanced by the new 3D design of the groove walls which adds stiffness to the tread blocks. On the rear pattern, separate short-lag grooves promote the right sort of tyre deformation around the grooves during cornering, helping to increase grip and acceleration out of corners.
Higher levels of grip over a wider temperature range are added by the use of a newly-developed compound, providing riders with superior handling and line-tracing precision. The RS10 profile was also revised, giving the new tyre a larger contact area in mid- to high-angle leans, producing better grip. This improvement gives the rider better line-tracing precision and a more confident feeling through corners.
In terms of construction, Battlax RS10 has been revised to upgrade cornering, add stability and provide a smoother ride. The front tyre’s mono-spiral belt is made with stiffer steel which improves the rigidity of the tread area. The rear tyre also has a softer sidewall construction for a smoother ride and is 650 grams lighter than the RS10 predecessor (BT003 Racing Street), which reduces the gyro effect, making leans easier in corners. From compound side the rear tyre adopts a cap and base layer compound in order to reinforce the stiffness of the tread.
Bridgestone testing at the Autopolis international racing circuit in Japan (June 2014) shows that the upgraded Battlax RS10 offers significantly higher levels of both front and rear grip, enabling faster performance.
Bridgestone RS10 will be available across Europe progressively from January 2015 in sizes front 120/70ZR17 and rear 190/55ZR17 and 200/55ZR17.
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2014 by Konrad MARKUS