Zigwheels Home

Tyre aspect ratio

by Abhishek Chaliha8,710 Views Comments

The aspect ratio of a tyre describes the height of a tyre's sidewall as a percentage of the width of the tyre

 

Tyre aspect ratio

 

 

 

 

The aspect ratio of a tyre is represented by a percentage that indicates the height of the tyre, from bead to tread, in relation to the width of the tyre. For example, if the aspect ratio is 45 then it means that the height of the sidewall of a tyre is 45 percent of its width in measurement. Eg; 205/45 R16 83 V, in this case the aspect ratio of the tyre is 45 percent. 

 

The higher the aspect ratio of a tyre, the taller the sidewall of a tyre will be. Heavy vehicles such as such as luxury cars, buses and trucks have tyres with aspect ratios as high as 95. Tyres with high aspect ratio may compromise on handling but provide a more comfortable ride by cushioning bumps due to more air in the tyre.

 

On the other hand, high performance cars have tyres with a low aspect ratio. That means that these are low profile tyres with shorter and stiffer tyre walls that allow the tyre to resist cornering forces better, thereby improving handling traits of a car by reducing roll around corners. However, tyres with low aspect ratio compromise on the ride comfort of a vehicle as more vibrations are passed on from the tyre to the suspension of the vehicle. This happens as there is less air in the tyre to absorb bumps and vibrations. 

 

Most regular road tyres strike a balance between high and low aspect ratio to provide good handling traits for a vehicle while maintaining a comfortable ride. 

 

 

Post Your Comment

Do you like this story?

Wheel diameter and wheel radius

by Abhishek Chaliha

The wheel diameter is measured from lip to lip of...

Tyre speed rating

by Abhishek Chaliha

The speed rating for a tyre is represented by an...

Radial tyres

by Abhishek Chaliha

The use of radial tyres on automobiles is...


 
 
FEATURED SLIDESHOWS

Mercedes-Benz GLA Volkswagen Polo i1.5 and Hyundai Elite i20 Mercedes-AMG GT front action Jaguar XE front static Mahindra Great Escape Maruti Ciaz front static  2014 Mahindra Reva e2o T2 Review Gallery Maruti Ciaz Datsun mi-DO

 
TOP VIDEOS

Maruti Ciaz: ZigWheels Video Review

The Maruti Ciaz, its maker believes, has what it takes to upset the likes of the new Honda City. We...

Jaguar XE: Official Video

With the XE, Jaguar is ready to take on the entry-level luxury sedan segment. Take a closer look

 

Read Next Story