Tyre Label Query?

[ColinForsecks]

Is there any reason why the tyre size 265/35/R19 would be rated a C for Wet Performance whereas all other sizes are rated A? Is this just an error or is there a specific reason why they wouldn't perform as well?

Surely they wouldn't test every combination of the tyre during the tyre tests?

Link to screenshot on blackcircles showing tyre ratings.
https://ibb.co/Y8xYL9m
https://www.blackcircles.com/tyres/brands/hankook/...

Edited by ColinForsecks on Friday 10th September 07:57