[Greg S]

Your correct -- this is disappointing. Michelin is my go-to brand, but I'm not sure I will do so when it's time for tire replacement on my P8.

Michelin sells an EV tyre that supposedly has reduced rolling resistance (longer range) as well as a foam insert in the tyre for reduced noise. I think I will consider a set of these when the original Pirelli P Zeros wear out. Given the relatively low range of our "bricks", I would never consider a non-EV tyre under the assumption that an EV-specific tyre design would give at least a bit better range than a non-EV tyre.

 

[Greg S]

More details about the Michelin EV tyre:

MICHELIN Pilot Sport EV Summer Road Tire

With electrified road control made to last, the MICHELIN Pilot Sport EV eco-designed[5] tire delivers quiet[7] driving fun on electric sports vehicles.

www.michelin.com.au

 

[Greg S]

This is strictly a high performance summer tire for EVs, not usable in other seasons like the All Seasons spec PSA4.

Ahh, OK. We don't do "all season" tyres in Australia. We don't really have winter so no need.

 

[Greg S]

25K miles into it, 20" wheel - huge difference between front and back tires, luckily i checked yesterday.
Need to change the front pair ASAP -- not messing around with tires for sure.

I suppose it's ok to have different brands for front and back ? Would hate to replace the back tires when they're still in good shape.

Thoughts anyone ?

Micheline All-Season at 60KM mile appear to be a populate one on this forum ?



View attachment 7231 View attachment 7232

If that is a pic of your front and your back tyre, I'd recommend replacing all 4 as both look like they've got some surface crackign if you look up close, and even the RH photo doesn't look like it has a lot of tread left. And as others mentioned, the wear on the front looks pretty uneven, so either you drive aggressively in the corners, or it may be an alignment issue.

 

[Greg S]

I've been a XC40 owner for just about two years, first time I've seen this, now I'm scratching my head and saying WTF Volvo ! ! !

Due to their weight and and acceleration, EV's are particularly hard on tires, add in they can't be rotated and the warranty is cut in half, really appears they didn't think through the benefits of staggered tires (if there are any), vs. the loss of warranty and increased tire wear. Still love our XC40, but I really question what drove them to this decision.

My educated guess (I worked as an engineer in the automotive industry for 25 years) is that Volvo wanted to make sure the handling at the limit was benign, which means tending towards understeer. By putting the larger tyres on the rear, theoretically it will have more grip in the rear, which should result in understeer at the limit. Interestingly the closely-related Polestar 2 has the same size tyres front and rear, although I believe the rear wheels are a half inch wider (preventing front/rear tyre rotations just like the Volvo)...but the Polestar has a somewhat lower centre of gravity, so it likely handles somewhat differently than the Volvo SUVs. I could be wrong...we can't be sure without speaking to Volvo's chassis engineers.