XAS

As asymmetric as foot !

  • XAS Image

    XAS, la précision de conduite

  • Picto XAS zoom

    Vue détaillée

XAS - Driving precision

From its launch in 1965, the XAS remained the reference tyre until the end of the ʹ70s.

It was the first tyre with an asymmetrical tread pattern, with the inside and outside of the XAS working differently to give the vehicle an optimal balance.

As asymmetric as a foot!

Michelin made more progress by differentiating the many elements that form the tyre, leading to the creation of the XAS : the first tyre with an asymmetrical tread pattern. The XAS was developed by taking into account the separate type of work performed by the shoulders, sidewalls and various parts of the crown, depending on whether they are on the inner or outer side of the car. Just like a person’s foot is asymmetric, the inside and outside of a tyre work differently to provide the vehicle with optimal balance.

Like moving on rails!

This major development allowed the XAS tyre to provide:

- outstanding stability,

- exceptional road holding in bends,

- previously unknown levels of grip in all conditions.

It was the first standard tyre designed to run at 210 km/h (131 mph) and its exceptional performance naturally led to the XAS being used in Formula France racing from 1968 onwards, circuit racing, rallies and hill climbs.

Dimensions

Dimension Seat Sculpture TT/TL Load Index Speed Code Section width (mm) Outside diameter Circ. bearing Rim size (min-max) Tube
155 HR 13 13" XAS FF TT 78 H 157 582 1775 4.0 4.5 5.5 13 D 13
165 HR 13 13"  XAS and FF  TT   82 167  600  1824  4.0 4.5 5.5  13 D 13 
185 HR 13  13"  XAS FF  TT  88   186  625  1906  4.5 5.5 6.5  13 F 13 
165 HR 14 14'' XAS TT 84 H 167 626 1903 4.0 4.5 5.5 14 D 13
175 HR 14 14" XAS TL 88 H 178 364 1927 4.5 5.0 6.0 14 E 13
155 HR 15 15'' XAS and FF TT 82 H 157 630 1915 4.5 4.5 5.5 15 E 13
165 HR 15 15'' XAS TT 86 H 167 646 1964 4.0 4.5 5.5 15 E 13
180 HR 15 15'' XAS TT 89 H 175 680 2067 4.5 5.0 5.5 15 E 13

Technical informations

Infos Techniques Carousel XAS?

Related links

The adventure of

XAS

1965

Launched in

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