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Michelin to Switch From 13" Tyres to 18" Tyres on Formula Renaults

Published 23 May 2015

In October 2014, Michelin and Renault Sport announced their intention to develop 18" and 17" tyres for the Formula Renault 3.5 and Formula Renault 2.0 single-seater racing cars that star in the World Series by Renault.

Following further testing, Renault Sport and Michelin have concluded that the replacement of the 13" tyres that currently equip the WSR’s FR3.5 and FR2.0 cars is a first class solution to make driving more enjoyable still for competitors. Benefits include enhanced performance during transient phases. Tyres with smaller sidewalls produce less yaw, greater precision and improved steering response. At the same time, the change marks a big step forward in terms of the opportunities it offers when it comes to carrying over technology to Michelin road tyres. 

Testing resulted in the following sizes for the future being selected:

Formula Renault 3.5 (front slick) 26/64x13  -->  28/71x18

Formula Renault 3.5 (rear slick) 32/66x13  -->  33/71x18

Formula Renault 2.0 (front slick) 20/54x13  -->  20/61x17

Formula Renault 2.0 (rear slick) 24/57x13  -->  24/64x17

“There are solid grounds from both the technical and sporting viewpoints for switching to 18" and 17" tyres,” said Philippe Mussati, Manager of Michelin Motorsport’s Customer Competition Department. “Our tests reveal that the drivers benefit from more precise performance, while the change also provides the teams with additional scope for set-up work which would consequently have a far bigger influence on results. On top of all this, bigger tyres also enhance the cars’ look.

“Renault Sport and Michelin believe these new tyre sizes represent the future of single-seater racing. Any decision to use them for the World Series by Renault from 2016 will only be made once the development programme has been completed, but the perspective of Michelin being behind such a ground breaking shift in the world of single-seater racing in association with its long-time partner Renault Sport is an additional source of satisfaction for us.”



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