owdnorthener Posted August 2, 2023 Report Share Posted August 2, 2023 Hi, Hoping someone can help re my 2020 discovery 5 landmark. The tyres now fitted, are road tyres 285/40 x 22" and I want A/T tyres fitting. A suggestion by farmer friend is to try Renegade radar A/T which seem be good value. Use will be mainly road, probably ( 75%/25% ) but also some rough farm tracks, fields ect, not heavy off roading. Problem is, as car has air suspension, will A/T tyres catch/rub as car raises and lowers ? Will I need change wheels to a smaller size ?....... of course, I'm hoping I can fit A/T tyres to my existing rims, but what size ? Thanks for reading and of any advise offered. Quote Link to comment Share on other sites More sharing options...
RCB56 Posted August 2, 2023 Report Share Posted August 2, 2023 If you can find an a/t tyre the same size as your road tyres 285/40 x22 they will be the same diameter as your road tyres. Quote Link to comment Share on other sites More sharing options...
owdnorthener Posted August 2, 2023 Author Report Share Posted August 2, 2023 Mmm, nearly, Have found 285/45 x 22 A/T and at a good price. Quote Link to comment Share on other sites More sharing options...
RCB56 Posted August 2, 2023 Report Share Posted August 2, 2023 There are 275/40 x 22 A/T which the only 10mm narrower than 285s. To find the dia of a tyre width x aspect ratio ÷ 25.4 x 2 + rim dia. For you tyres 285x0.4÷25.4×2+22=30.976. The 285x0.45 are 1" larger in dia. Quote Link to comment Share on other sites More sharing options...
8 shot Posted August 2, 2023 Report Share Posted August 2, 2023 Change to 20" wheels, better selection of tyres and a hell of a lot cheaper. I've seen to many cracked 22" Alloys Quote Link to comment Share on other sites More sharing options...
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