Carry the sprung mass and set the wheel rate together with the motion ratio.
A coil spring over the damper body, on a mounting shackle with adjustable preload jam nuts.
No part-specific design process is documented. The Dampers subsystem design process applies: 1. Kinematics sets wheel rates; spring rate follows from wheel rate and motion ratio. 2. Dyno the available dampers and select matched units by axle. 3. Set bump stop height from the aerodynamic minimum ride height and the worst-case heave and roll. 4. Tune on track using damper position data from the bellcrank rotary hall-effect sensors. 5. Read the traces for asymmetry between bump and rebound travel time, which is the practical indicator of over- or under-damping.
Hyper-Co 18FS150 front and 18FS250 rear.
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.
Front 150 lb/in, 4.4 in free length, 3.052 in maximum stroke. Rear 250 lb/in, 4.4 in free length, 2.913 in maximum stroke. Preload adjustable up to 0.75 in. From the cost report drawings and CAD: CAD mass, CR26E master assembly: 0.651 lb (0.295 kg), 4 instances, 2.605 lb total. CG at X 52.75 in, Y 0.00 in, Z 20.77 in in vehicle coordinates. CAD mass, CR26I master assembly: 0.079 lb (0.036 kg), 4 instances, 0.316 lb total. CG at X 52.76 in, Y 0.00 in, Z 12.14 in in vehicle coordinates. CAD mass, CR25 master assembly: 0.079 lb (0.036 kg), 4 instances, 0.316 lb total. CG at X 52.76 in, Y 0.00 in, Z 12.14 in in vehicle coordinates. CAD mass, CR22 master assembly: 0.635 lb (0.288 kg), 4 instances, 2.540 lb total. CG at X 54.06 in, Y 0.00 in, Z 11.85 in in vehicle coordinates. Source: SolidWorks mass model exports: CR22 (5 May 2024), CR25 (4 Jul 2025), CR26I (30 Jul 2025), CR26E (22 Mar 2026) Quantity per car, as costed: 4
Nothing in CrimsonStorage covers these yet.