DN Suspension Technology Co., Ltd.-Devoted to automotive races

STABLE AS A ROCK, RESILIENT WITHOUT END

Built-in nitrogen PD version

· The 50mm piston significantly enhances driving comfort and handling when tackling challenging terrains; · The 2.2-inch large-tube design increases damping capacity, effectively improving thermal stability and resistance to performance degradation; · The monotube construction with built-in nitrogen gas makes installation simpler and ensures more stable performance; · Multiple retaining ring grooves on the outer tube allow for free adjustment of vehicle height; · A specialized sealing mechanism further boosts the shock absorber’s stability; · The high-strength forged steel lower mount features advanced surface treatment, offering superior corrosion resistance and enhanced durability against sand and gravel impacts; · It has successfully passed a rigorous fatigue test involving 6 million cycles.

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PD + version product features

Built-in Nitrogen PD+ Version

· 30-stage damping-adjustable valves offer a wide range of softness and firmness settings. · The external nitrogen tank design ensures faster heat dissipation and more efficient performance. · A 50mm piston significantly enhances riding comfort and handling, especially on challenging terrains. · The 2.2-inch monoshock design increases the capacity of the piston valve, effectively improving heat dissipation and durability.* Multiple spring clip slots are integrated into the outer barrel for flexible adjustment of vehicle height. · A unique sealing mechanism boosts the stability of the shock absorber, while specialized surface treatments provide superior corrosion resistance and enhanced protection against sand and gravel impacts. · The product has successfully passed a rigorous 6-million-cycle fatigue test.

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GP version product features

GP Edition

Optimized for a wider damping adjustment range, ensuring compatibility for use across all terrains. Features a 9-position manual compression adjustment system, along with a 9-position manual rebound adjustment system that allows simultaneous high- and low-speed tuning.

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CDC active electronic conxrol version

CDC Electronic Control Version

· High-speed responsive electromagnetic valves paired with mechanical pistons offer a wide adjustable range for softness and firmness, ensuring rapid response. Equipped with a high-grade chip-based ECU and featuring multi-terrain dynamic tuning, this system significantly enhances both vehicle safety and handling performance. · The external ammonia tank design enables faster heat dissipation, resulting in more efficient performance. · A 50mm piston delivers exceptional comfort and control, particularly when tackling challenging terrains. · The 2.2-inch large cylinder design boosts the capacity of the piston valve, effectively improving heat dissipation and durability. · Multiple retaining ring grooves are strategically placed along the outer surface of the cylinder, allowing for effortless adjustment of vehicle height. · A unique sealing mechanism enhances the stability of the shock absorber, while specialized surface treatments provide superior corrosion resistance and improved resilience against sand and gravel impacts. · Rigorously tested for 6 million cycles under extreme fatigue conditions to ensure long-lasting reliability.

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DN&HP.1 Competition-grade high-end version

DN&HP.1 Racing Custom Edition

Built-in roll-over prevention mechanism / Customized based on installation angle

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Competition version

Competitive Edition

Featuring the race-grade internal damping structure, this product is ideal for experienced riders and suitable for various road conditions—even extreme terrains—allowing for diverse usage and customized tuning options. With its wide range of applications, it can be adjusted to match each customer's unique driving preferences and habits (though tuning may require some expertise). Key features include: - High-speed damping adjustable in 25 ± 2 stages, - Low-speed damping adjustable in 25 ± 2 stages, - Rebound damping adjustable in 25 ± 2 stages. It also boasts excellent resistance to degradation and high temperatures, ensuring long-lasting performance. (We recommend a comprehensive maintenance service—such as rebuilding and restoring damping performance—once a year.)

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Civilian products

Overall Diameter

Racing products

Overall Diameter

Personalized Customization

Overall Diameter

Our strengths

Dunai has introduced high-end nitrogen shock absorbers, meticulously crafted using advanced French technology. Committed to cutting-edge R&D and fostering innovation, Dunai is dedicated to delivering top-tier products and services for automotive sports events—both domestically and internationally.

High-end nitrogen shock absorbers meticulously crafted with advanced French technology

Developing a range of cutting-edge automotive competition products, including high-performance racing and civilian vibration-damping solutions, has helped establish a strong brand image within the industry...

DN Technology Patent

The strong performance of Dona's vibration-damping products has earned the growing trust of more and more drivers and racing teams...

Shock Absorber Tuning Service

Providing top-tier products and services for automotive sports events, both domestically and internationally. The exceptional performance of Dunai shock absorbers has won the trust of an increasing number of drivers...

About Us

Guangzhou DN Suspension Technology Co., Ltd.

Guangzhou DN Suspension Technology Co., Ltd. (hereinafter referred to as DN Technology) was established in 2016, and since its inception, the company has been striving to develop a wide range of high-end nitrogen shock absorbers. By adhering to the principles of research and development of core technologies and active promotion of innovation, DN Technology has dedicated itself to providing the highest quality products and services for car sports competitions both domestically and internationally. It has been the reliability and outstanding performance of the products that have earned recognition among an increasing number of racing teams and drivers. At the same time, DN Technology has also gained valuable experience in racing, laying a solid foundation for the next product upgrades and iterations

Explore Duonai

News and Information

Duonai has also gained valuable race-day experience, laying a solid foundation for the next phase of product upgrades and iterations.

More information

Modification Case | Land Rover Discovery 4: 0–1 Inch Lift Kit GP Edition Unlocks a New Realm of All-Terrain Capability

The Land Rover Discovery 4 is a remarkable vehicle that combines luxury and off-road capability.

08-28

2025

Modification Case | It’s Settled! The Equation Leopard 5 Upgrades to GP-Style Shock Absorbers, Delivering a Dramatically Enhanced Dynamic Experience!

In conclusion, the upgrade of the Equation Leopard 5 to GP-style shock absorbers marks a significant milestone in its evolution as a high-performance vehicle.

08-28

2025

Modification Case | Stability + Comfort! Overseas Test Drive of the Small Buggy Gets High Praise for Durable, Vibration-Reducing Shock Absorbers

As the automotive industry continues to evolve, there is a growing emphasis on enhancing performance while ensuring comfort and safety.

08-28

2025

We look forward to hearing from you.

You can contact us in any convenient way—our 24/7 service is available via fax or email, and we’d be happy to answer your questions.

Telephone

86-020 39029793

Sales@dnshocks.com

Address

Building A14, Huachuang Animation Industry Park, Jinshan Village, Shiqi Town, Panyu District, Guangzhou City

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