General Tyre / Tire Information

Wednesday, July 21st, 2010 Tech Articles 1 Comment

General Tyre / Tire Information

More information can be found on these wikipedia pages wiki/Motorcycle_tyres and  wiki/Tire_code

Tyre / Tire size

Metric Sizing

I will only list the metric sizing as it is most applicable to sport bike wheels

190/50 17 means the tire is 190mm wide on a 17-inch rim with an aspect ratio of 50. This method is called “metric,” even though the rim size is in inches. The aspect ratio is the height of the side wall and it is a percentage of the width. i.e. 190/50 is 190mm wide and has a height of 95mm (190mm X 50%). A 190/55 tyre is 190mm wide with a height of 104.5mm (190mm X 55%).

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