This fits our #QRSW. 

This Black anodised aluminium adapter mounts a steering wheel to our quick-release bosses.

Wheel mounting has 6 x 5.5mm holes on a 101mm (4") PCD.

Boss mounting has 3 x 6.2mm holes on a 45mm PCD and 3 x 5mm holes on a 50mm PCD.

Plate diameter 113mm. Max plate thickness 10mm.

Weight 203gm

STEERING WHEEL ADAPTER PLATE #SSADAPT1