You don't need anything special for your flat tire monitor, as it functions by comparing the rotating speed of any wheel with another wheel on the same axle. It doesn't measure pressure.

Can't help with aftermarket wheels, I use OE.

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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