Nominal Posted May 20, 2023 Posted May 20, 2023 12 minutes ago, Kerry-TGI said: What makes a 195/65 no good for 8" wheel but 195/40 is ok? Just that extra height makes it dodgier? No manufacturer specs it I guess. Quote
Bling Posted May 20, 2023 Posted May 20, 2023 Different sidewall strength / stiffness would be part of it i'd say. Best to call up tyre manufacturers and ask if you need to know proper though. Quote
Bling Posted June 13, 2023 Posted June 13, 2023 Probably not. You'll probably find they all go by the LVVTA spec as nothing for them to gain by saying yeah stretch our tyres and we'll take responsibility if you stack it. Too many numpities took stretch too far so now it's tightened up. Any old documents that did exist are probably no longer valid. Why even worry? You don't seem too worried about suspension working properly so just run the tyres you want and deal with any issues that may or may not occur lol. This should still be current: https://www.lvvta.org.nz/documents/infosheets/LVVTA_Info_01-2009_Tyre_Size_to_Rim_Width_Compatibility_Guide.pdf The above table is also referenced in the WOF VIRM, so can be a fail if the inspector is looking. 1 1 Quote
cletus Posted June 13, 2023 Author Posted June 13, 2023 that falken thing was fairly short lived it was only valid for a specific model of tyre which has been discontinued apparently it was one countries office of falken that released that alternative size chart, and once the main office of falken found out, they said nope, cant be used any more. lvvta continued to accept the falken sheet for that model of tyre. i havent seen any for a long time though 4 Quote
spiderwebfx Posted June 14, 2023 Posted June 14, 2023 Falken ZE912 (and some FK452) used to have wider than normal tolerance for rim widths. The tyre is now discontinued as mentioned above although there are still some sizes available until sold out. Falken also released a bulletin that basically overrode the technical spec sheet that was released saying that it is no longer valid and to abide by their latest technical data book which lined them up with everything else. The only advantage with Falken now is that they do still produce some oddball size tyres to suit slightly wider rims that you wouldn't be able to get otherwise. 195/45R14 is a good example of this. 1 Quote
spiderwebfx Posted June 14, 2023 Posted June 14, 2023 On 20/05/2023 at 15:23, Kerry-TGI said: What makes a 195/65 no good for 8" wheel but 195/40 is ok? Just that extra height makes it dodgier? Sidewall construction and layout is slightly different on lower profile tyres so they load the sidewalls different. Quote
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