KSP 15mm Hubcentric Wheel Spacers 5x112 — G-Chassis BMW (2019+)

Fitment precision is where these stand apart from generic slip-on designs. KSP's in-house engineers measured OEM G-chassis hub and bore dimensions directly, landing on a 66.56mm center bore with a retaining lip that seats flush against the hub with minimal clearance. That tight, hubcentric interface is what eliminates the vibration and steering shimmy common with non-hubcentric or oversized-bore spacers — your BMW drives exactly as BMW intended, just wider.

The design details are well thought out for real-world use. Relief pockets machined around the full circumference give you a place to insert a pry tool during removal without gouging the spacer or wheel face. The enlarged center cutout trims weight without compromising structural integrity. Every spacer is laser-engraved with its size and part number, so there's no confusion when you're swapping wheel setups at the track. Thread locker is included in the box to keep fasteners secure from day one.

At 15mm per side, these spacers are enough to correct clearance conflicts with larger brake calipers or aftermarket suspension components, and they push your wheels outward to fill the G-chassis fenders with a properly aggressive stance. The package includes two spacers, KSP stickers, a pro instruction manual, and one year of direct KSP support — with a team that actually uses their own products on- and off-road.