350mm (13.8") Black Suede Momo steering wheel. This wheel is deep dish design wheel, so it will bring the wheel rougly 1.2" closer to you than a flat steering wheel like a Momo model 78.
This is the adaptor you need in order to connect a Sparco, Momo or OMP steering wheel to a Quick Disconnect.
Momo model 78 350mm (13.8") steering wheel. This is the perfect size for the Miata. It is about 1" smaller in diameter than the stock steering wheel.
NEW Version December 2012! The best Miata QD system on the market. Threads onto the stock steering shaft and requires no permanent welding to the car. It moves the steering wheel farther back in the car to accommodate most driver seating positions.