Vehicles originally equipped with RFT will have the EH2 rim design. This is a different profile on the rim, with a second ridge that retains the RFT bead in the event of deflation. EH stands for extended hump, EH2 means on both inner and outer edges of the rim.

I suspect that by pins they mean these ridges.

I can certainly understand that these additional ridges would make new tires harder to seat. That said, they should be able to do it, standard tires fit on EH2 rims.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue