Cusco 428 61N CN Street Zero A Coilover Kit Mazda MX-5 Miata NCEC

The Cusco 428 61N CN Street Zero A Coilover Suspension Kit is a high-performance suspension system designed specifically for the Mazda MX-5 Miata Roadster (NCEC chassis, 2005-2008). This premium coilover system combines street comfort with track-ready performance capabilities, allowing precise ride height and damping adjustments to suit any driving condition.

Key Features:

• 40-stage twin-tube adjustable dampers front and rear for wide-ranging suspension tuning
• Full-length coaxial height adjustment system maintains proper damper stroke and eliminates spring preload issues
• Front spring rate: 6 kg/mm (optional 7 kg/mm springs available)
• Rear spring rate: 4 kg/mm (optional 5 or 6 kg/mm springs available)
• Recommended height adjustment range: -55mm to 0mm front, -45mm to -15mm rear
• Maximum adjustment range: -87mm to 0mm front, -52mm to -15mm rear
• Non-adjustable HD rubber upper mounts for street comfort (factory mounts reused)
• Compatible with optional Cusco pillowball upper mounts for increased adjustability and direct feedback

Each coilover is specially valved and dimensionally engineered for the NCEC chassis, providing excellent handling improvements while maintaining ride quality suitable for daily driving. The Street Zero A series represents Cusco's premium street suspension lineup, offering the maximum damper adjustment range and full-tap height adjustment for perfectly dialed-in ride height and damper settings.