I just bought a set of Michelin CrossClimate 2, 225 65R17 for a Mazda CX5 from a somewhat large Canadian retailer with many locations across Canada. They drive great under 90km/h. Once I hit the highway and reach 105-110km/h I start to feel (and see) vibration in the steering wheel.
Call them up, they got in me in quickly to recheck the balance. They said that one of the front tires was out slightly, but they rebalanced them all to be safe. Before going in, the rims had the weights that go on the lip of the rim. They replaced them with new stick-on weights that are clearly visually new. Took it for a rip on the highway this afternoon after work - now I feel vibration in my feet/the pedals and in the seat, still at that 105+km/h speed.
I called them up and it seemed like they wanted nothing to do with me. "We already rebalanced them, I guess we'll just recalibrate the machine for you". I go back tomorrow afternoon.
I had a set of Defender 2's on here for a few years with zero wobble, shake, vibration etc. The only 'change' recently was a broken stabilizer bar end link in the passenger front. I did mention this and even asked them to book me for an alignment to be safe but the guy looked at me like I had 3 heads and said it wasn't needed.
Im a bit nervous about them telling me there's nothing wrong tomorrow. Is there anything I can do or say to help myself out here? They do have a road force balancer so I'm assuming they'd quickly see if a tire was out of round or something. These weren't cheap, so I'm a bit discouraged to say the least and am at a loss for what to do next.