SteyrTek adapter
 

• Thickness: 1 inch = 25.4 mm

• Bolt pattern: 6 x 139.7 / 6 x 139.7

• Center hole diameter: 110 mm

• Outer diameter: 176 mm

• The package contains 1 piece
• If you want to center the adapter on a hub with a diameter less than 110 mm, please use a hub centric ring.

https://www.tyrelia.com/wheel-accessories-hub-centric-rings-c-90_161.html

With this adapter, you can reduce the offset in a car with a 6 x 139.7 bolt pattern by shifting the wheel outwards by 25.4 mm. The bolt pattern stays the same. The stud bolts and nuts (thread pitch: 1.5 mm, thread diameter: 12 mm) for mounting the wheel on the adapter are included in the delivery. However, the bolts for installing the adapter on the car's hub are not included. Please use the car's own bolts. If the adapter is especially thin, you may have to shorten the bolts or purchase bolts with lower heads.

This fine SteyrTek adapter is made of high-quality aluminium. For racing only.