Ksport CNS390-RR Version RR Road Race Coilover Kit Adjustable Monotube - 36-Way

The Ksport Version RR (CNS390-RR) is a purpose-built road race coilover system engineered exclusively for track use. Featuring aggressive spring rates and shock valving with a 20–30mm shorter shock stroke, this kit delivers acute handling response and unparalleled performance on the circuit. For race use only — not intended for street driving.

Key Features:

• 36-Way Adjustable Damping: Simultaneous compression and rebound adjustment across 36 distinct settings lets you precisely dial in handling characteristics for any track condition
• 30% Stiffer Valving and Spring Rates over standard Pro coilovers, optimized for maximum grip and cornering performance
• Upgraded Bumpstops: Integrated bump stops are housed inside the dust boot to prevent shock bottoming over curbs and uneven pavement — more durable and less prone to deterioration than external designs
• Monotube High-Pressure Design: Oil and gas are separated within the cylinder for faster, more even heat dissipation, finer damping adjustability, and significantly reduced aeration and cavitation compared to twin-tube designs
• Pillowball Upper Mounts: Available on many applications, pillow ball top mounts increase steering feel and direct driver feedback. Ksport's patented Top Nut and Bearing Kit helps minimize noise at low speeds
• Camber Adjustment: On compatible applications, the advanced upper pillow ball mount enables separate camber and caster adjustments, eliminating the need for an additional camber kit
• Adjustable Lower Mount for Height: Height adjustment via the lower mount preserves full suspension travel — you don't sacrifice stroke to achieve your target ride height
• Aerospace-Grade 6061-T6 Billet Aluminum Components: Mounts, collars, and spring perches are machined from 6061-T6 billet aluminum for a lightweight, durable, and corrosion-resistant build
• Zinc-Electroplated Steel Shock Bodies: Treated shock bodies resist rust and environmental exposure; kits include an anti-rust paste packet for additional protection on key coilover surfaces
• Spring-Matched Valving: Each kit is valved specifically to the installed spring rates for consistent, predictable ride quality. Custom spring rates are also available
• Dust Boots Standard: All corners include dust boots to protect damper seals from dirt and debris
• 12-Month Limited Warranty: Covers manufacturer defects

The Ksport Version RR coilover system is the choice for serious road racing competitors who demand uncompromising suspension performance. Custom spring rate options allow the shocks to be valved to your exact specification, making this kit adaptable to a wide range of track setups and racing classes.