How Many Kilometers Can a Compact Spare Tire Run?
2 Answers
A compact spare tire should not exceed a maximum speed of 80 km/h and a driving distance of no more than 100 kilometers. A compact spare tire refers to a spare tire that is slightly smaller in diameter and narrower in width compared to the regular tires. Compact spare tires have different speed ratings and load indexes from the vehicle's four normal tires and cannot be used as a replacement; they are only for temporary use. Below is relevant information about compact spare tires: 1. Drive within the speed limit when using a compact spare tire: Since compact spare tires differ in specifications from the original tires, they usually have a speed limit marking, typically 80 km/h. After installing the spare tire, the driver must adhere to the speed limit for safety. If driving on a highway, choose the rightmost slow lane and turn on the hazard warning lights. 2. The spare tire should be installed on the front axle: Regardless of the vehicle's drive axle, tires with higher speed ratings should be installed on the rear axle to prevent potential oversteering (commonly known as "fishtailing"). Therefore, the spare tire with a lower speed rating should be installed on the front axle. 3. Compact spare tires should not be used for long periods: Prolonged use of a compact spare tire can significantly affect the vehicle's braking performance and handling due to its substantial differences from the original tires, compromising driving safety.
As an experienced road trip enthusiast, I remember that time when my car had a flat tire on the highway. After switching to a compact spare tire, I could only drive slowly to the service area, which was just over 50 kilometers away. These tires really aren't meant for long distances—generally, it's recommended to drive no more than 80 to 100 kilometers on them. Due to their smaller size, the speed should be limited to under 80 km/h. The tread and sidewalls of these tires are thinner, making the car feel unstable at higher speeds, with poor braking performance. They're especially prone to skidding in rainy conditions or on curves, posing significant safety risks. My advice is to head straight to the nearest repair shop to switch back to the original tire as soon as you've installed the spare—don't push your luck for speed. Before any trip, always check your tires for wear and pressure, and keep a small air pump in the car for emergencies to avoid relying on the spare. It's also crucial to regularly check the spare tire's expiration date, as an old spare may have deteriorated and is even less suitable for the road. In short, safety comes first—don't risk driving long distances just to save time.
