They are the SPXXL, I ordered them for the 4.8is rear to fit on a 315/35/20. They are being sold because I no longer own the X5.

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Jeff
Current:
'07 Jeep Wrangler
'06 BMW X5 3.0i

Former:
'12 WRX; '08 WRX; '06 BMW X5 4.8is Dinan S1; '02 BMW 530i Dinan S2