Various trolley manufacturers
Wholesale Buyers' Requirements for the Durability of Electric Scooter Shock Absorption Systems
Wholesale Buyers' Requirements for the Durability of Electric Scooter Shock Absorption Systems
For wholesale buyers of electric scooters, product selection isn't just about choosing "good-looking products"; it's also about selecting "assets that can help you earn money without worry." The durability of the shock absorption system is crucial to determining whether this asset can continue to create value—it's directly related to after-sales costs, end-customer repurchase rates, and even your market reputation. When end-consumers frequently return or complain due to shock absorber damage, it's ultimately you, the buyer, who bears the losses and reputational risks.

I. Why is the durability of the shock absorption system a buyer's "hidden profit guardian"?
Many buyers tend to prioritize battery life, appearance, or price when selecting products, while overlooking the durability of the shock absorption system. However, this "invisible component" is actually the core factor affecting your long-term profits.
Reducing after-sales costs and minimizing "hidden losses" When end-customers use Electric Scooters, the shock absorption system endures repeated impacts from bumpy roads and the pressure of heavy loads every day. If durability is insufficient, problems like spring breakage and shock absorber oil leakage can occur in as little as 1-3 months. This means you'll need to frequently process returns and exchanges, cover repair and logistics costs, and even compensate end customers for losses. These hidden expenses can directly eat into your profits.
Maintaining customer reputation and increasing repeat purchase rates: The core competitiveness of wholesale procurement lies in "long-term stable supply chain value." When your customers (such as offline stores and e-commerce sellers) receive an electric scooter that lasts 1-2 years without any shock absorber issues, they'll be more likely to continue purchasing from you. Conversely, if poor shock absorber durability leads to a buildup of negative reviews, you'll gradually lose customers to competitors.
Adapt to diverse scenarios and expand sales reach. End users in different regions have vastly different usage scenarios: some ride on smooth urban asphalt roads, others navigate gravel roads in rural areas, and still others frequently carry goods (such as for deliveries and daily groceries). A durable shock absorber system can adapt to these diverse scenarios, allowing your product to reach a wider market (such as in the growing market and logistics and delivery scenarios), rather than being limited to a single niche.
II. Buyers' Three Core Requirements for Shock Absorption System Durability
As a buyer, to determine whether an electric scooter's shock absorption system meets standards, you shouldn't simply rely on the manufacturer's verbal promises of "our products are durable." Instead, you should focus on the following three core, actionable dimensions.
1. Material: The "Basic Threshold" of Durability
The material determines the "innate lifespan" of the shock absorption system. When purchasing, pay special attention to the materials of two key components:
Shock absorber body: Prefer high-carbon steel or aircraft-grade aluminum alloy. These materials have far greater fatigue resistance than ordinary steel and can withstand long-term turbulence without deformation or breakage. Avoid cast iron or low-quality steel, as these materials may crack after only 3-6 months of use.
Shock absorber spring: Must be 65Mn spring steel or a higher-grade alloy spring. High-quality springs can maintain at least 80% of their elasticity after more than 100,000 compression-rebound cycles; low-quality springs may deform and lose their elasticity after only a few thousand cycles.
2. Structural Design: The "Acquired Guarantee" of Durability
High-quality materials require a well-designed structure to maximize durability. Two key considerations should be considered when purchasing:
Shock Absorber Structure Type: Dual shock absorbers (front and rear) are more durable than single shock absorbers (rear only). Dual shock absorbers distribute road impact forces, preventing a single shock absorber from being overloaded for extended periods. Furthermore, choose a multi-link shock absorber structure over a monotube structure, as the former distributes force more evenly and wears more slowly.
Sealing and Protection Design: Does the shock absorber have a double-layer sealing rubber ring and a dust cover? When riding outdoors, dust and rain can easily enter the shock absorber, causing piston wear and oil leakage. A shock absorber system with a comprehensive sealing design can extend its service life by over 50%.
3. Operating Condition Adaptability: The "Real-World Standard" of Durability
No matter how impressive the manufacturer's laboratory data is, it's not as convincing as real-world testing. When purchasing, ask the manufacturer for the following operating test data:
Load durability: Can stably withstand a load of 150kg-200kg (far exceeding the average user's weight), and after 500 kilometers of continuous riding, the shock absorber performance deteriorates by no more than 10%.
Road adaptability: After 2000 consecutive bumps on a test bench simulating gravel roads and speed bumps, the shock absorber shows no oil leakage and no spring deformation.
Environmental adaptability: Can operate normally in environments ranging from -20°C (low temperature) to 60°C (high temperature), avoiding problems such as shock absorber stiffness in winter and rubber seal aging in summer.

III. Four practical methods for buyers to evaluate shock absorber durability
Once you understand the core requirements, it's even more important to master the "how to verify" method. These four practical tips can help you avoid manufacturer's "word games" and accurately select high-quality products.
Request a third-party test report, rather than the manufacturer's self-reported data. Ask the manufacturer to provide a fatigue test report for the shock absorber system issued by an authoritative organization such as SGS or ITS. Focus on the "number of fatigue tests" (must be ≥100,000) and the "failure criteria" (e.g., whether there is oil leakage or spring deformation exceeding 2mm after testing). Self-printed "test reports" from the manufacturer are less reliable and should be treated with caution.
Investigate the factory to review the production process details. If possible, visit the manufacturer's production line to observe the assembly of the shock absorber system:
Observe whether welds are smooth and free of slag (poor-quality welding can easily lead to shock absorber breakage);
Check whether the sealing rubber ring is properly installed (to see if there are any gaps and whether a special sealant is used);
Inquire about the "pre-shipment sampling inspection" process (e.g., randomly selecting 10 units from each batch for a 200-kilometer test).
Sampling Trial: Verify durability in "real-world scenarios"
Randomly select 2-3 units from the samples sent by the manufacturer and conduct a 1-2 week field trial:
Have people of different weights (e.g., 60 kg and 100 kg) take turns riding;
Ride on a variety of surfaces (asphalt, concrete, gravel), and ride at least 50 kilometers per day;
After the trial, disassemble the shock absorber and inspect the internal piston for wear and spring deformation.
Reference peer purchasing feedback to avoid "scams."
Use industry communities, trade shows, and other channels to inquire with other electric scooter buyers:
Which brands have a high after-sales service rate for shock absorber systems?
Does a particular product's shock absorber system generate frequent customer complaints?
How quickly does the manufacturer respond to after-sales service issues regarding shock absorber issues (is there any evasion, and how long is the repair cycle)?
Conclusion: Choosing the right shock absorber means choosing the right long-term business.
For wholesale buyers of electric scooters, the durability of the shock absorber system isn't just a bonus, but a lifeline. It's crucial for after-sales costs, customer trust, and market competitiveness. Rather than dealing with frequent shock absorber issues later, it's better to prioritize them during the procurement process—paying attention to materials, structure, and operating data. Verifying through field testing and peer feedback will ensure you select products that truly make you money.













