Screw-on spacers, 40 mm thick, with a centering flange. Material: duralumin PA6. Thread type: pins with M12 x 1.5 grooves. Spacer thickness: 40 mm on each side (80 mm per axle). Hole/flange diameter: 70.3 mm. Centering hole depth: 38 mm. Hole size: 5x120.65mm. Nuts for securing the spacers to the hubs (M12 x 1.5) are included. Bolt hardness: 10.9.

The spacers are made from hard PA6 aluminum, offering strength and lightweight properties, ideal for track driving. The hole and centering flange are created with a tolerance of up to 0.05 mm, ensuring accurate wheel centering and preventing vibrations in the steering wheel.

The shape of the pins and rings protects against pulling during wheel tightening, while allowing the use of spacers that change the bolt distance, facilitating the installation of rims from another car with the same number of fastening bolts.