1st - Consider upgrading or changing to comfort base touring tires like Primacy/Turanza/Advan Db/Ventus Prime 3 etc tires first..

2nd if already done that and felt the sidewall still stiff, consider downgrading your sport rim from 17 to 16 if still got space to downgrade.
225/55/16 or 215/60/16 would be alternate choice but do take note when comfort side go up, handling side will go down.

This post has been edited by littlefire: Nov 26 2021, 11:45 AM

Yokohama Advan Db
Michelin Primacy 4
Bridgestone Turanza T005
Hankook Ventus Prime 3