Many people have wanted to change the stock steering wheel to an after market version but have had problems finding a reasonably priced hub to fit the Spridget steering column. I found a used adapter that had the 5 bolt Grant bolt pattern and then found a wooden Grant steering wheel. This works great but I have not been able to find another adapter. What I decided to do was to design a simple plate that gets sandwiched between the stock hub and the after market steering wheel. The adapter seen in the pictures below is plastic but actual adapter will be machined from 6061 aluminum plate. The plastic was cheaper and easier to machine for the prototype. Although this is drilled for the 5 bolt grant wheel, it can also be set up for the 6 bolt Momo and the 9 bolt Moto-Lita. I have not been able to find the 8 bolt Nardi bolt circle so I do not know if that can be done. If anyone has it please let me know and I can see if there is interference with the 6 bolts used in the stock hub. Below are some pictures to illustrate what I am talking about
The back of the adapter and the stock hub. There is a recess around the outside as well as two slots to match the raised surface of the hub that was used to guide the spokes of the stock steering wheel.
This is the adapter bolted to the stock hub. The 5 small holes are drilled and tapped for 10-32 screws.
This is the wheel assembled to the adapter and hub.
Once I get some made in aluminum I'll paint them wrinkle finish black and get some more pictures.
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