Anybody with tire experience that can give me some advise going from

265/60/18 michelin ltx as temperature B traction A 109T M+S

To

255/70/18 bridgestones dueler at rhs temperature B traction B 112S M+S

Newer tire is less than a half inch thiner. And another concern is the traction rating from A to B.

More that anything concern on traction.

Thanks in advance.