Spare kit includes T125/70R18 tire on 18 X 4 steel wheel (bolt circle 5 X 120), jack, wrench, and bag. Fit my 135 and 228. Tire Rack shows it interchangeable with T135/80D17, so I think it also fits most 2 & 3-series. NEVER USED! Tire Rack lists tire alone at $125, full kit at $400. $200 and will deliver in DC area.