1. Non-full-size spare wheel
refers to non-full-size spare tire is a tire diameter slightly smaller than the conventional tire, the width of the narrow spare tire.
Whether it is a full-size spare tire or a non-full-size spare tire, just the emergency tires. They are not the same level of speed and load indicators of the normal four tires of a vehicle, it can not be used instead. Spare tire can only do a temporary replacement, and with a top speed of less than 80 kilometers driving distance does not exceed more than 100 kilometers.
Because the size of the problem is not specifically a spare tire States mandatory, many manufacturers in order to save the cost of a small selection of the tire model as a spare tire. For example tires of the vehicle is in normal use spare tire 205 is 195, which is non-full-size spare tire.
using the non-full-size spare tire to alert motorists to promptly repair or replace the tire, in order to avoid prolonged use spare tire driving safety hazard posed. In a sense, but also to control costs.