K-SPORT - KSPORT - BMW 3 Series E90/E91 2006-2011 Version RR Damper System Coilovers (CBM090-RR)
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Ksport Version RR coilover System is built specifically for road racing only. Aggressive rates and valving are chosen for maximum handling and performance with acute reaction and responsiveness. Integrated with 36 levels of damping adjustment, simultaneous compression and rebound adjustment, lightweight aluminum mounts, and pillow ball upper mounts on some applications. (Race use only.)
36 levels of damping adjustment allow you to fine tune the ride to your handling and comfort needs. The damping adjusts compression and rebound simultaneously for ease of adjustment. Pillow ball top mounts in the front and rear on some applications allow you to maintain vehicle manufacturer suspension geometry design. The pillow ball top mounts also allow you a more direct feel for solid driver response. Camber adjustment via the Pillow-ball Mount is available for certain applications, allowing camber adjustment without an additional “Camber Kit.”
Most applications utilize an adjustable lower mount, which means you adjust height without losing suspension travel like some other coilover designs do. With the mounts and most pieces of the coilover being designed for 6061 billet aluminum the kit is lightweight, durable, and rust resistant. The steel shock body is electroplated with zinc to resist rust and the elements. The valving of each set is matched to the springs installed for unmatched ride quality and reliability.
The Ksport system uses a Monotube design in which the oil and gas are separated within the cylinder. When compared to twin tube designs the Monotube dissipates heat better, allows finer damping adjustments, and requires a more expensive design process. Aeration and cavitation are a lot less common in a Monotube design, which results in a better ride.