Cusco Street Zero A: Full Height Adjustable, 40-Way Adjustable Twin-Tube Coilover
The Cusco Street Zero A is the most fully featured model in the Street Series, combining full independent height adjustment with 40-step damper adjustability in a single coilover system. Available in Blue (comfort) and Red (sport) variants, the Street Zero A is designed for drivers who want maximum control over both their ride height and suspension feel, whether that means a comfortable daily setup or a more aggressive configuration for occasional circuit use. Each set is individually valved and dimensionally designed per vehicle application, assembled in Japan in ISO 9001 and ASEA certified facilities, and exceeds 500 hours of elemental testing standards.
CPRV internal pressure valve technology
The Street Zero A features Cusco's CPRV (Constant Pressure Relief Valve) system, a pressure dependent bypass built into the base of the damper rod. It automatically compensates the hydraulic fluid flow to maintain a minimum comfort threshold at all times, preventing the damper from falling into an overly stiff or underdamped state at low and mid adjustment settings. This means the full 40-step adjustment range remains usable in real-world conditions without sacrificing ride quality at softer settings.
Technical specifications
| Feature | Details |
|---|---|
| Damper type | Twin-tube with redesigned base valve and CPRV internal pressure valve, quiet operation, consistent damping across the full adjustment range |
| Damper adjustment | 40-step needle valve adjustment, front and rear |
| Electronic control | Compatible with optional Cusco e-Con2 Electronic Damper Controller, individual front and rear adjustment from the cockpit with up to 4 saved presets, adjustable with a single button press |
| Height adjustment | Double tapped full height adjustable structure, shock stroke and spring preload remain unchanged at any ride height setting. Supports mild to extended lowering. |
| Spring preload | Spring perch and preload adjustment included for fine tuning |
| Upper mounts | OEM upper mounts are reused by default. Optional Cusco pillowball upper mounts available for increased road feedback and adjustability. Red variant includes camber adjustable upper mounts for strut front applications. |
| Lower bracket | Ribbed design, material selected per vehicle application |
| Thread design | Precision cut with special coating for smooth adjustment and long-term durability |
| Application tuning | Individually valved and dimensionally designed per vehicle, no universal fitments |
| Corrosion testing | Exceeds 500 hours of elemental testing standards |
| Manufacturing standard | ISO 9001 and ASEA certified, assembled in Japan |
Street Zero A Blue vs Street Zero A Red
| Street Zero A Blue | Street Zero A Red | |
|---|---|---|
| Character | Comfort oriented | Sport oriented |
| Intended use | Street comfort, mild to extended lowering | Street, autocross, high-speed open track, mild to extended lowering |
| Camber adjustable upper (strut front) | No | Yes, included |
| e-Con2 compatible | Yes (optional) | Yes (optional) |