Runflat tyres are for operational reasons, the enviroment the vehicle would be expected to be in. In civvy life Tyre size matching, Radial or Cross ply. Ply Rating, Tonne Mile per Hour rating, Maximum Speed rating and pressure, are the important things. As well as general tyre care looking for blebs, cuts, Sidwall cracking, nails etc. This applies whether you run motorway tread patten, Offroad patten, Snow, Quarry or soft ground low profile or any of the specialist tread pattens available. Wheels come in various guises, different offsets, different J sizes, centre diamiter stud spacing and stud numbers, spigot mounted, tapered nut and washer, split rim, tube, tubeless,1 piece 2 piece 3 piece and 4 piece. With various rim locking methods. All need to be treated with equal RESPECT. Air pressure above 3psi can pierce the skin and cause health problems, high pressure air or any tyre fill needs to be treated with caution. Handling instructions are available and should be read.