SRK-110H and SRK-R110H boss kits fit a 15mm diameter spline.
NRG Short Hub. These units were designed specially so that an aftermarket steering wheel installed with the quick release kit still mounts in the same location, not too close to the driver. Made from the highest quality aluminium. Our Short Hubs are made to work with our Quick Release Products. This product is designed utilising one piece solid construction for the maxim in durability and usability. Please note: Personal/Nardi Steering wheels will also require a quick release hub.