Bhai, PS is providing General 155/80R13 in new cars as Stock tyre in cultus since Long.
Kiya ho gya hay??? Go on road and check tyre of any cultus first yar
I have used different models of cultus from 2000 to 2016 and all of them are equipped with 155/80R13 from Factory fitted.
General XP 2000 II.
Even if u see sticker on driving side door, stock size mentioned is also 155/80
155 is already less and if u will use 155/70 balance will be issue that's why after much research, PS has equipped these cultus with 155/80R13
Also I am using 175 so there is slight difference felt in speedometer and odo readings as usual bcuz I shifted from stock 155/80R13 to 175/70R13