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Ksport CMZ140-RR Road Racing Coilover System with Damping Adjustment - 36-Way

(1985-1991 Mazda RX-7)

Manufacturer

Part Number

CMZ140-RR
Sale Price

$1,615.00

Estimated ship date Saturday, November 21

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ksport Version RR (CMZ140-RR) is a purpose-built road racing coilover system engineered for maximum performance on the track. Featuring aggressive spring rates and precision valving, this system is designed for acute reaction and responsiveness where handling performance is the top priority. For race use only.

Key Features:

  • 36-Level Damping Adjustment: Simultaneous compression and rebound adjustment allows precise, easy fine-tuning of suspension behavior to suit varying track conditions and driving styles
  • Monotube Shock Design: Oil and gas are fully separated within the cylinder, providing superior heat dissipation, finer damping adjustability, and significantly reduced risk of aeration and cavitation compared to twin-tube designs
  • Pillow Ball Upper Mounts: Available on select applications (front and rear), pillow ball top mounts preserve the factory suspension geometry while delivering a more direct, connected feel for improved driver response
  • Camber Adjustment: On qualifying applications, camber adjustment is integrated into the pillow ball mount, eliminating the need for a separate camber kit
  • Adjustable Lower Mount: Height is adjustable via the lower mount on most applications, allowing ride height changes without sacrificing suspension travel
  • 6061 Billet Aluminum Construction: Mounts and major components are machined from 6061 billet aluminum for a lightweight, durable, and corrosion-resistant build
  • Zinc Electroplated Steel Shock Body: The steel shock body is electroplated with zinc for enhanced rust and elemental resistance
  • Matched Spring and Valving: Each set is valved specifically to the installed springs, ensuring optimal ride quality, consistency, and long-term reliability
  • Stiffer Spring Rates and Valving: Tuned specifically for road racing demands with a 20–30mm shorter shock stroke for a lower center of gravity and improved cornering performance

The Ksport Version RR coilover system delivers a track-ready suspension solution with race-proven monotube technology, lightweight materials, and highly configurable damping — all in one complete kit built for serious road racing applications.

Products specifications

Fits

1985-1991 Mazda RX-7

Spring Rate (F)

14/784kg/lbs

Spring Rate (R)

12/672kg/lbs

Upper Mount (F)

P/U

Upper Mount (R)

ATM

Top Mount Type - Rear

Aluminum Mount no camber adjustment

Adjustable Height

yes

Upper Mount Type

Pillowball Mount with camber adjustment

Top Mount Type - Front

Pillowball Mount with camber adjustment

Gas Charged

Yes

Spring Rate Front kg/mm

14

Ksport Product Category

Coilover Kits

Subject to CARB? Yes/No

No

Dust Shield

No

Lower Mount Type

Adjustable

Spring Rate Rear kg/mm

12

Ksport Product Sub-Category

Version RR Road Race Coilover Kit

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