The E85 Z4 Roadster and E86 Z4 Coupe are the successors to the Z3, launched in 2003 with a more aggressive design language and a sharper chassis -- the generation that proved BMW could build a serious driver's roadster. The standard Z4 spans the 2.0i, 2.2i, 2.5i, 3.0i, and the later 2.5si and 3.0si with their naturally aspirated inline-six engines. The E86 Coupe -- the compact shooting brake that came in 2006 -- is now one of the most collectible modern BMWs. The standard Z4 uses a 5x120 bolt pattern with a 72.6-millimeter hub bore. The factory wheels were 16-inch through 18-inch cast units. A forged monoblock upgrade reduces unsprung mass on a chassis that is already light and responsive.
The Z4's fitment accounts for the strut front suspension and the multi-link rear that the Z4 introduced, replacing the Z3's semi-trailing arm design. The rear multi-link geometry has different camber characteristics under compression than the Z3, which our offset accounts for. The 3.0si's sport brakes demand specific caliper clearance. Our offset is measured on a real E86 Z4 Coupe 3.0si chassis through the full steering and suspension range, with the correct 72.6-millimeter hub bore for hub-centric fitment. No spacers. No centering rings.
Forged 6061-T6 aluminum monoblock. Available in 17-inch for a period-correct profile, 18-inch for the sport stance, or 19-inch for a restomod upgrade. Custom spoke design -- a split-spoke, a mesh, or a modern multi-spoke. Brushed, polished, hyper silver, satin black, bronze, gold, or custom color. The Z4 Coupe is a future classic that rewards every unsprung mass saving with sharper steering and more compliant ride quality. Machined or laser-etched logo. Private-label packaging. Your Spec. Our Factory.