The spare tire included with a car tends to be an inch smaller than the main tires. This is influenced by a variety of factors, including vehicle design, safety, and space.
Why are car spare tires so small? Let’s talk about this in depth.
The weight reduction
The main reason for using a smaller spare tire is to reduce the automobile’s weight. A smaller tyre weighs less, lowering the car’s total weight. This also improves fuel efficiency because lighter vehicles need less fuel.

Table of Contents
Space Storage
A smaller spare tyre needs fewer places to be stored, providing more room in the car. A smaller tyre, particularly in SUVs or smaller automobiles with limited room, saves important space that can be used for luggage or other uses.
Temporary Use
A spare tyre is primarily intended for emergency use and should not be used for extended periods of time. It is intended to transport you to the nearest service centre if your regular tyre becomes damaged, where you may fix or replace it.
Cost Reduction
Smaller tire are cheaper to manufacture. Car makers minimise expenses by making the spare tyre smaller, which has no substantial impact on the overall price of the vehicle.

Lower Speed Limits
A smaller spare tire is intended to run at a slower pace than an ordinary tire. This serves as a reminder that this tire is not intended for extended use at high speeds. It is normally advised to drive at 50-80 km/h with a spare tyre.
Less effect on braking and steering
In an emergency, a smaller and lighter spare tyre keeps the car roadworthy.
All of these considerations contribute to the spare tire’s smaller size being reasonable and practical. While it may not be as long-lasting as the main tire, it fulfils the objective of safely transporting you to your destination in an emergency.
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