215/75R17.5 tyres are suitable for a range of trucks and heavy vehicles. They have a 215mm section width and a 75% aspect ratio. This means that these tyres are 75% as high as they are wide. They are made with radial ply construction and the 17.5 in the code signifies that they fit wheel rims with 17.5 inch diameters.
Tyres have a final part at the end of their code that lets you know the maximum load capacity and the top speed that they can safely operate at. For instance, 215/75R17.5 135J tyres can carry 2180kg each, at speeds of up to 100km/h.
There are many different makes and models of truck that can use 215/75 R17.5 tyres. These will vary by year, so you should make sure that you confirm your vehicle's tyre size before you look at buying new tyres.
Some drivers might prefer to use a tyre size that is slightly different to 215/75 R17.5. An option such as the 225/70R17.5 will be slightly wider, giving you better handling. You could also choose something narrower instead if you would prefer better fuel economy. There are several different choices, so be sure to think through which option would suit your driving style best.