Which tire does not rotate when the car turns right?

[SanHaven]

When the car turns right, all tires rotate, but the right wheel turns slower than the left wheel. Here are specific details about tires: 1. Tire functions: Tires support the entire weight of the vehicle, bear the load of the car, transmit traction and braking torque, ensure the adhesion between the wheels and the road surface, reduce and absorb vibrations and impacts during driving, prevent severe vibrations and early damage to car components, adapt to the high-speed performance of the vehicle and reduce driving noise, ensuring safety, handling stability, comfort, and energy efficiency. 2. Tire maintenance methods: Tire maintenance includes regularly cleaning stones from tire treads, minimizing exposure to sunlight, frequently checking tire pressure, paying attention to suspension maintenance, periodically inspecting front wheel alignment, and being mindful of driving habits.

[OIker]

This is actually a brain teaser! The tire that truly doesn't turn when a car makes a right turn is the spare tire. You've probably noticed while driving normally that all four wheels are in motion, but the spare tire in the trunk just lies there quietly. Last time I changed a tire, I chatted with the mechanic about this, and he said spare tires are designed for emergencies and don't participate in daily driving. During turns, the inner and outer wheels rotate at different speeds—professionally speaking, the differential adjusts this—but the spare tire is always excluded from this system. Considering safety, spare tires are usually secured with special brackets, so remember to check the tire pressure regularly to avoid issues when you need it.

[DelLuke]

This is a really interesting question. My first thought was that the inner tires rotate slower, but then I realized all tires in contact with the ground rotate. Actually, there is one tire on your car that doesn't rotate at all—the spare tire! I often enjoy studying car structures. The spare tire is either mounted under the car or stored in the trunk, completely detached from the drivetrain. When turning, the steering wheels adjust their angles automatically based on direction—the front wheels handle steering while the rear wheels handle driving, but the spare tire remains suspended and uninvolved throughout. I recommend car owners check their spare tire condition every six months, as rubber does age over time.

[JamesonMarie]

As a seasoned driver, let me share a cool fact: all four tires rotate when a car turns, just at different speeds. The one that truly doesn't rotate is the spare tire! It wasn't until I had a flat and changed to the spare that I realized it always stays quietly on standby. During turns, the front wheels change direction via the steering knuckle, while the differential adjusts the speed difference between left and right wheels – but none of this involves the spare. Spare tire placement is carefully designed: often mounted on the rear for SUVs, while sedans usually store it beneath the trunk floor. A word of caution: spare tires left unused for long periods may slowly lose air, so regular inflation checks are recommended.

[Harris]

I noticed many people misunderstand this issue when repairing cars. All driven wheels turn when steering, but the spare tire, as the fifth wheel, indeed remains stationary throughout. Last time, a novice driver asked me how to check if a spare tire is still usable, and I taught him to look at the production date and cracks. During turns, the steering system causes the front wheels to deflect while the rear wheels maintain propulsion, with tire friction aiding the vehicle's steering—processes the spare tire doesn't participate in. It's especially important to note that even full-size spare tires shouldn't be used as regular tires for long periods; they should be replaced promptly after emergency use.