Sparco Quick Release Hub Adapter Specifications Fitting between the steering wheel and the boss kit this Sparco quick release adapter allows you to quickly remove the steering wheel making getting in and out of the car far easier for the driver. If you find it difficult to get in place because the bucket seat and the rollcage reduce access space this quick release is exactly what you need !With an impressive know-how Sparco equip all types of vehicles in different racing categories around the world. Fruit of over 40 years experience these quick release adapters can be found in the highest competition levels such as the Le Mans 24 hours GT or WRC.Universal product compatible with the majority of boss kits and steering wheels (Sparco Nardi DriftShop etc.).