Photo by Robert Laursoo on Unsplash
145/80R13
The language and terminology surrounding tyres can be quite confusing, especially if you are dealing with classic cars. Your cherished classic may require replacement tyres and figuring out which ones to buy can be troublesome. When looking at tyre specifications, you will see ‘Section Width’, ‘Aspect Ratio / Side Wall Height’, ‘Wheel Diameter’, ‘Outside Tyre Diameter’ and ‘Speed Rating’.
The Ford Anglia 100E, 105E, and 123E were originally fitted with 5.20 13 Cross Ply tyres. The number 5.20 refers to the width of the tyre in inches. The 13 refers to the 13-inch rim diameter and the modern replacement for this type of tyre is the 145/80R13.
‘145’ refers to the diameter of the tyre in millimetres and as you can see, it retains the number ’13’ which still refers to the rim size. The number 80 refers to the aspect ratio which is represented as a percentage of the tyre’s width. In this case, 80% of the tyre’s width is equal to 116 millimetres. The ‘R’ refers to radial, which is the construction type of most modern tyres, whereas the original tyres fitted on the Ford Anglia were of a Cross Ply construction. The tyres are still available through the Portuguese manufacturer Camac with their 5.20 x 13 Camac.
For more information about 145/80R13 tyres, visit here.
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