pwede yan. pero certain width nga lang. let say yun tire mo 195x55x15 pwede ka mag wider tire to 205x50x15. Pwede pa nga mga smaller width tire on wider rims, tire stretch setup ganito:



F1 style tire.

But its best to stick to manufactures specs. Expect, madami mabago drivability, tire wear, noise, fitment baka sumayad na yan sa mga pangilalim, pag wla ka sa specs recommended for the rims.

Pros nito? Better grip on cornering and braking, if you're racing. kung daily lang... wala! sayang lang pera mo, stick to whats recommended.