Nick,

My X5 only came with 20" (not 20')

Seriously though, they are Dunlop SP Sport MAXX. Front 275/40 R20 and Read 315/235 R20. That was late Oct / early Nov 2007 production.

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2008 X5 4.8i | Wheels: Summer> style 336 20" RFT; Winter> style 214 Ferric Grey 20" RFT | Aero kit | ESS E-Flash tune | V1 | LCI Rear Tail Lights | Coding completed | Engine replaced at 90K