Quote:
Originally Posted by CLH
Tire size is not constrained in Street, but you’re limited to what you can squeeze onto the stock-width wheels. A 19” with a 305/30 will fit in the rear, but as you mentioned that would require another wheel choice since the EC-7 has nothing in the right spec. If I don’t get enough rear grip with the 275 I’ll try the 285 before bumping up to a 19” wheel with the 305.
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To stay in stock/street class you'd have to run 10" rear wheels, so the 305/30 will mount and fit ok on a 10"wheel even though it's mildly pinched as the TRA recommended widths for a 305/30-19 is 10.5"-11.5".
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Current Stable:
2024 G20 M340i Melbourne Red/Cognac
2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg
2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, ARC-8