Technical Support
The Original Aspiration of Seiko
Uncompromising technical excellence
Technology and engineering R&D are the foundation and soul of DN. Driven by a commitment to continuous breakthroughs and guided by the goal of consistently leading the industry, we deliver cutting-edge, field‑proven professional shock‑absorption systems.
Get in touchART system
(Anti-roll system)
The ART system is our patented technology.
The goal is to ensure the vehicle delivers robust stability and precise handling during cornering, braking, and acceleration. The ART system can mitigate body roll in corners, nose-diving under braking, and rear‑end squat during acceleration, and it can also address all three phenomena simultaneously.
When the outer wheel enters a corner, or when the front wheels are braking, or when the rear wheels are accelerating, the ART system allows the damper’s compression damping to be increased. This enhances the vehicle’s handling, improves directional stability, and reduces driver errors.
The system’s configuration can reduce the stiffness ratio of the anti-roll bar (stabilizer bar).
It minimizes the dynamic influence of the anti-roll bar on the wheels, making it more independent. This enhances the vehicle’s overall traction and grip, delivering a significant boost in performance. The ART system is fully compatible with all Multi‑Ride series dampers and can be retrofitted or upgraded.
FRS system
(Fast Rebound System)
The FRS system is our patented technology,
The goal is to get the wheels to contact the ground as quickly as possible.
Unquestionable grip
① Track Line: The FRS system helps your race car maintain a stable racing line at high speeds by effectively enhancing grip. The rebound setting of the shock absorber does not need to account for vehicle balance or grip. ② Optimal Travel: Between two obstacles, the shock absorber extends to its maximum travel within just a few milliseconds, thereby providing additional available travel when it passes the next obstacle.
③ Comfort and obstacle‑absorption capability: When traversing an obstacle, the shock absorber quickly self‑adjusts, minimizing vehicle squat while enhancing its ability to surmount the barrier, thereby delivering a more comfortable ride.
Enhance vehicle performance
① Improved tracking, braking performance, handling, and obstacle‑clearing capability enhance the driving experience.
② Reduces frame fatigue and shock to all mechanical components.
③ Racers and co-drivers will enjoy the comfortable driving experience provided by the FRS system, which helps reduce post-race fatigue.
To ensure the FRS system operates more effectively, we have developed an auxiliary system that enables it to respond even faster than conventional rapid‑rebound systems!
Release assistance
The RS system’s advantage is that it is unaffected by damper settings, age, or temperature.
Therefore, its operating state is stable, reliable, and predictable.
For continuous undulating road surfaces, the FRS system delivers the same rapid response and effectiveness.
The FRS system enables the shock absorber to deliver a higher rebound value than standard while maintaining grip.
We have two separate rebound settings:
One is when the FRS system fails to operate (when the wheels are in contact with the ground).
One scenario is when the FRS system is active (when the wheels are off the ground): the system automatically switches and takes effect immediately, depending on two specific conditions.
After the wheel leaves the ground, the rebound force will be as shown in the figure on the right:
Once the wheel regains contact with the road, the system automatically reverts to its initial settings (with the FRS system deactivated), and this switching can occur at a rate of up to 20 times per second!