Lets the driver remove the steering wheel to get out of the car within the egress time limit.
A center lock and outer lock pair with a retaining insert and retaining screw. Pulling the outer lock releases the wheel from the splined shaft.
No part-specific design process is documented. The Steering subsystem design process applies: 1. Kinematics sets steering geometry, Ackermann targets and rack travel. 2. Size the column and shafts for torsional stiffness and for the bearing housing that supports them. 3. Calculate static steering force from the tire and geometry, and check it against anthropometric limits. 4. Design the wheel shell around the button and switch layout and the dash sightline; prototype grips and take driver feedback. 5. Validate steering effort and Ackermann on track, using the alternate tie rod mounts to sweep setups.
Rules require the wheel be removable with the driver seated in the normal position, and the egress requirement is under 5 seconds.
Steel and aluminium.
None recorded. This part has no entry in Knowledge_Transfer/Issue Logging/Fault Vault.xlsx, in either Issue Log.xlsx, in CR22/Issue Tracking/Shakedown 7-15-23.xlsx, or in any design review issue list found in CrimsonStorage or Box.
CAD mass, CR22 master assembly: 0.229 lb (0.104 kg), 2 instances, 0.458 lb total. CG at X 31.76 in, Y -0.00 in, Z 20.03 in in vehicle coordinates. (CAD component: Steering_Wheel_Quick_Release) Dimensions called out on the cost report drawings. These are the figures printed on the drawing, not a labelled specification; open the drawing itself for what each one refers to. Steering_Wheel_Quick_Release (as drawn): 6.06, 6.35 Source: SolidWorks mass model exports: CR22 (5 May 2024), CR25 (4 Jul 2025), CR26I (30 Jul 2025), CR26E (22 Mar 2026) | Cost report drawings: CR25/Document Submissions/Cost Report/Steering_Wheel_Quick_Release.pdf Quantity per car, as costed: 1
Nothing in CrimsonStorage covers these yet.