EV Tire Tech, Maintenance Tips
As the only component of a vehicle in contact with the ground, tires directly impact driving safety, energy efficiency, and the driving experience. With the popularization of new energy vehicles, the upgrading of environmental protection concepts, and the development of the logistics industry, numerous technological innovations and usage standards have emerged in the tire field. The following analysis focuses on three dimensions: the characteristics of new energy vehicle-specific tires, key points of daily maintenance, and industry market trends.
The rise of new energy vehicles has spurred technological changes in specialized tires. Compared to traditional gasoline vehicle tires, new energy vehicle tires must simultaneously meet three core requirements: high load-bearing capacity, low rolling resistance, and strong quietness.
Due to the battery pack, new energy vehicles are 10%-30% heavier than comparable gasoline vehicles, necessitating the use of high-strength aramid fiber cords and thickened sidewall rubber in tires, along with optimized bead wire structure to enhance load-bearing capacity.
To extend range, low rolling resistance design is crucial. By reducing molecular friction through a silicone-based composite rubber formula, combined with a closed tire shoulder and finely patterned tread blocks to reduce air turbulence, a 15%-20% reduction in rolling resistance can increase range by 3%-5%. Furthermore, new energy vehicles, lacking engine noise, exhibit more noticeable tire noise. Designs such as sound-absorbing padding and asymmetrical variable pitch tread patterns can effectively reduce noise by 3-5 decibels, improving driving comfort.
Scientific and standardized daily tire maintenance is a core guarantee for safe driving, with tire pressure management, wear monitoring, and regular tire rotation being particularly crucial. Tire pressure should be checked monthly when the tires are cool, following the standards specified in the vehicle manual. Too low a pressure increases the contact patch and energy consumption, while too high a pressure reduces grip and makes the tires more susceptible to punctures.
The "TWI wear indicator" within the tire tread grooves is a replacement signal. When the tread depth is less than 1.6 mm, wet grip performance drops sharply, requiring immediate tire replacement. It is recommended to rotate tires every 8,000-10,000 kilometers, always using tires of the same brand and size.
Adjusting tire pressure after rotation effectively evens wear and extends tire life. Simultaneously, stones, glass, and other foreign objects should be promptly removed from the tire tread to prevent them from embedding and causing damage during high-speed driving.
If bulges or cracks are found, the tire should be stopped immediately for inspection. The tire industry is currently experiencing significant structural changes, with new energy vehicles and commercial vehicles becoming the core growth drivers. The heavy-duty truck market's eight consecutive months of price increases by the end of 2025 has driven a surge in demand for all-steel tires.
October alone saw orders for over 1.27 million all-steel tires from heavy-duty truck sales, with the penetration rate in new energy heavy-duty trucks exceeding 30%, opening up a blue ocean market for low rolling resistance, high load-bearing specialized tires.
Global tire companies are accelerating their transition to sustainability. For example, Bridgestone's ENLITEN technology tires improve wear resistance through optimized tread compound and structure, while increasing the proportion of renewable materials used, balancing performance and environmental protection.
The export market is also performing strongly, in the first ten months of 2025, China's rubber tire exports reached 134.8 billion yuan, demonstrating solid global competitiveness.
