KSP 5x120 72.56mm Wheel Spacers with 20PCS Extended Lug Bolts are precision-engineered for BMW 3 Series, 5 Series, 7 Series, and X1 models to improve stability, stance, and wheel fitment. Made from forged 6061-T6 aircraft-grade aluminum, these spacers are lighter yet stronger than cast alternatives, offering excellent resistance to deformation under load. CNC machining ensures perfect concentricity and balance, eliminating vibration and providing smooth high-speed performance. The hubcentric design with 72.56mm center bore fits snugly onto the hub, reducing stress on wheel bearings and maintaining OEM ride quality. Each spacer increases track width by 12mm or 15mm, creating a more aggressive appearance and improving cornering stability. The included ISO/DIN 10.9–12.9 grade SCM435 steel extended lug bolts are heat-treated for superior strength and corrosion resistance. These spacers provide additional tire clearance to prevent rubbing against frame rails or suspension links when running wider tires or lift setups. The kit includes 4 forged spacers and 20 conical seat bolts, designed for direct bolt-on installation with no modifications required. Ideal for BMW owners seeking enhanced handling, precise fitment, and a sportier wheel stance.