does tyre size make a different in handling?

[markus_74]

hello, Friends

I use 205/55/15 tyre but my front tire has broken.

so I buy only 1 pair to replace my front tire with 195/65/15

and then I feel that my car is understeer and for high speed the handling is scary, I can not feel the car contact with road/no grip

does it is because of the size of the tyre of I'm not change all tire with same size and compound/brand?

thank you
markus

[HairyScreech]

Yes, lack of foot print and wayyyyy too much sidewall flex.

If 205/55/15s are hard to get in your local market then 205/50/15 is an option.

[markus_74]

Thank you Hairy screech