How many kilometers can a non-full-size spare tire generally be used?
1 Answers
A non-full-size spare tire should not exceed a maximum speed of 80 km/h and is generally recommended for use within 100 kilometers. A non-full-size spare tire refers to a spare tire that is slightly smaller in diameter and narrower in width compared to the regular tires. Non-full-size spare tires differ from the vehicle's four normal tires in terms of speed rating and load index, and thus cannot be used as a permanent replacement—only for temporary use. When installing a non-full-size spare tire, it is essential to adhere to the speed limit. Due to the differences in specifications between the non-full-size spare tire and the original tire, there is usually a speed limit indicator on the spare tire, typically capped at 80 km/h. After installing the spare tire, the driver must strictly follow the speed limit to ensure driving safety. On highways, it is advisable to drive in the rightmost slow lane and activate the hazard warning lights. The spare tire should be installed on the front axle. Higher-speed-rated tires are usually installed on the rear axle to prevent potential oversteering (commonly known as "fishtailing"). Therefore, the lower-speed-rated spare tire should be mounted on the front axle. A non-full-size spare tire should not be used for an extended period. Prolonged use of a non-full-size spare tire can significantly affect the vehicle's braking performance and handling due to its substantial differences from the original tire, compromising driving safety.
