Off-Road Circuit Racing

DN shock absorbers, with a market share exceeding 70% in China’s off-road circuit racing scene, have consistently supported teams in reaching the top of the podium. In 2026, DN helped Jiujiang Racing achieve further success on the circuit: at the Hulunbuir round of the COC Ice and Snow Circuit, Jiujiang’s JJ3 swept the modified‑class podium, taking first, second, and third place, and also clinched the team championship. Earlier, the JJ3 had claimed second place in the modified class and the club cup at the Daqing round of the COC, secured pole position in the car class at the Yuhuan round, and captured the overall victory at the Helan Mountain Off-Road Carnival—proof positive that this track record speaks volumes about championship‑level quality.

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Engineered to Conquer Every Limit.

Our shock absorbers are meticulously engineered to withstand the harshest environmental and road conditions—mud, sand, gravel deserts, and extreme heat. Whether tackling high-speed runs on challenging terrain, negotiating razor‑sharp corners, or executing daring jumps, we ensure that the suspension systems used by our teams and drivers deliver not only outstanding performance but also unparalleled durability.

HP4

Front Buggy Shock Absorber

Rear Buggy Shock Absorber

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Rear Buggy Shock Absorber

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Custom-made, precisely tailored

We offer a suite of core features for off-road track racing—custom valve‑map tuning for jumps, high‑performance dual‑piston damping, and an intelligent rebound control system optimized for continuous undulating terrain—designed specifically for ramp‑jumping and landing‑impact scenarios. In addition, we provide a unique independent low‑speed compression adjustment that precisely addresses body roll and posture control in corners. This allows you to fine‑tune the shock absorbers to suit the distinct characteristics of COC tracks, whether it’s steep ramps, drifting corners, or tactical sections.

Strength Where It Matters. Flexibility Where It Counts.

Our shock absorbers are crafted from high‑strength alloy steel and aerospace‑grade machined aluminum, striking an optimal balance between lightweight design and exceptional durability—making them ideal for the most demanding jump‑and‑impact conditions in COC cross‑country racing. Certain models tailored for off‑road events feature oversized pistons and reinforced cylinder bodies, coupled with an internal nitrogen‑charging system, to deliver precise control over hydraulic pressure and damping while effectively mitigating oil emulsification and thermal degradation.

Proven in Competition.

As a key participant in the China Off-Road Championship (COC), the DN DN Shock Absorber Team has long competed in core classes such as Modified Group One. In the 2025 season, the team delivered outstanding results across multiple rounds—including the Hulunbuir Ice and Snow Rally, the Hangjin Banner Desert Challenge, the Yuhuan Coastal Race, and the final showdown in Kecheng, Quzhou—culminating in driver Fan Gaoxiang claiming the overall Drivers’ Championship in the Car class, while teammate Qu Zhibin earned the title of “Flying Car King” in the same category. At the 2026 Hulunbuir round, the team swept the top three spots in Modified Group One. These achievements firmly underscore DN DN Shock Absorbers’ formidable prowess in off-road rallying.

System integration, one-stop solution.

We also supply racing teams with a complete range of chassis system components—spanning precision valve‑assembly units to custom‑designed springs—each engineered and manufactured in‑house to the same rigorous standards as our shock absorbers. Guided by this philosophy, we offer a fully integrated chassis solution, providing COC‑eligible racing teams with end‑to‑end support, from product development to technical assistance.

How do our racing shock absorbers differ?

Track expertise delivers extraordinary performance.

With over 25 years of experience in domestic and international racing, our suspension specifications have been refined and tested over more than 25 years, rigorously tested and validated under the most extreme conditions on the track. Our expertise and technological capabilities span a wide spectrum, encompassing everything from T1+ race cars to classic circuit‑racing machines.

Mobile Service Center — On-Site Support Wherever You Race

Turn our expert support into your competitive edge, and enjoy fast, high‑quality on‑site service for your shock absorbers during the event.

Flexible manufacturing, agile response

Leveraging our extensive in-house manufacturing capabilities, we can swiftly adapt to diverse customer needs and uphold our stringent quality standards at every stage, ensuring consistent product quality.

Trusted across all categories, covering every vehicle segment.

As experts in multi‑category motorsport, our shock absorbers have earned the unwavering trust of top‑tier T1+ class racers, off‑road circuit machines, production‑based race cars, UTVs, and even heavy‑duty trucks, serving the entire spectrum of vehicles in off‑road rallying.

Comparison of All Off-Road Venue Racing Products

We offer professional-grade, custom suspension solutions that precisely adapt to a wide range of applications and vehicle platforms. Our comprehensive product lineup meets diverse needs, from entry-level to premium‑class applications.

All shock absorbers are manufactured in strict accordance with high‑quality standards. The main structure is crafted from high‑strength steel and precision‑machined aluminum alloy, achieving an exceptional strength-to-weight ratio while ensuring robustness and reliability, thereby delivering consistently superior performance even under the most demanding track conditions.

Off-Road Circuit Racing	HP.1	HP.2	HP.3	HP.4	HP.S	Buggy offroad shock front	After the off-road shock on the buggy
Damping control	8-Way	7-Way	7-Way	6-Way	6-Way	6-Way	6-Way
Blow-Off Buffer Release	√	√	√	√	√	√	√
Quick rebound (fixed)	√	√	√	None	None	None	None
Adjustable rebound (low speed)	√	√	√	√	√	√	√
Adjustable compression (low speed)	√	√	√	√	√	√	√
Adjustable Compression (High Speed)	√	√	√	√	√	√	√
Adjustable Rebound Ride (low speed)	√/Non-adjustable	None	None	None	None	None	None
Adjustable Rebound Ride (High Speed)	√/Non-adjustable	None	None	None	None	None	None
Auxiliary Piston	√	√	√	√	√	√	√
Hydraulic Bump Stop	√	√	√	√	√	√	√
Coilover Ride-Height Adjustment	√	√	√	√	√	√	√
Materials	Aluminum / Steel Damper Body	Aluminum / Steel Damper Body	Aluminum / Steel Damper Body	Aluminum / Steel Damper Body	Aluminum / Steel Damper Body	Aluminum / Steel Damper Body	Aluminum / Steel Damper Body
Damping technology	Single-Tube, Multi-Valve Design	Single-Tube, Multi-Valve Design	Single-Tube, Multi-Valve Design	Single-Tube, Multi-Valve Design	Single-Tube, Multi-Valve Design	Single-Tube, Multi-Valve Design	Single-Tube, Multi-Valve Design