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Michelin Pilot Sport 4 S photo

Michelin Pilot Sport 4 S
Owner photo Michelin Pilot Sport 4 S

Submitted August 8, 2026 · BMW X3m40i · 255/40 R21

From the review

I fitted Michelin Pilot Sport 4S to my BMW X3 M40i (G01) as an alternative to the factory run-flats, in 255/40 R21 front and 295/35 R21 rear. I’ve now done around 10,000 km, so thought I’d share some G01/G02-specific impressions for anyone considering ditching the factory RFTs.The PS4S is ...

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