I wouldn't classify it as false information. But ok, you win. Congrats. lol I suppose on my countless amounts of wheels and tires I've bought over time that I've been wrong all along.
Here, taken off an online post:
The tires on a BMW Mini Cooper might be labeled: P195/55R16 85H
P — these tires are for a passenger vehicle. However 'P' denotes P metric size load and speed rating changes for P tire & non-P tires.
195 — the nominal width of the tire is approximately 195 mm at the widest point
55 — indicates that the height of the sidewall of the tire is 55% of the width (107 mm)
R — this is a radial tire
16 — this tire fits 16 in (410 mm) wheels
85 — the load index, a maximum of 515 kg (1,140 lb) per tire in this case
H — the speed index, this means the maximum permitted speed, here 210 km/h (130 mph).