Todd,

That was my first thought on that also. Since the Kuhmo's are nice and quite and the Portenza's are not and are still in the back I thought they might be.

thanx for the response. Not that I am completly ruling out the bearings but will keep it in mind.

And yes guys the circumferance of the tires in the same or very close. The old Portenza's were fairly new and the kohmo's are brand new. The previous owner always changed them in pairs not Quad's. and no ill effects. She is on her second Tranny with 80k+ on it and still going strong. So when these wear out I will replace all 4 next time.

Thanx
Wayne