A few days ago, I drove for over an hour with a punctured tyre. It was my first time. Looking at the shredded rubber afterwards, I hope it will also be my last.
Why did I keep driving?
It was late, dark actually, and the puncture happened far from any settlement. There were no houses nearby, no familiar faces, nowhere I felt safe waiting. The route had a reputation for kidnapping. With the insecurity in the country, stopping there felt like exposing myself to another danger.
My spare tyre offered little reassurance: I was sure it had no air. And even if it had been inflated, I had no jack. The odds were pretty pitted against me.
So I kept moving.
For over an hour, I drove until I reached a familiar place close to home. There, I parked, found somewhere to inflate the spare, borrowed a jack at a cost, and changed the damaged tyre.
I thought the ordeal was over.
Then I noticed the steering. It had become stiff, almost as though the power steering had stopped working. The stiffness eased while the car was moving, and I was able to get home.
I plan to have a mechanic check it in the coming days. Getting home was a relief, but the steering left me with another question.
What Was Happening Beneath the Car?
An inflated tyre supports a vehicle through the combined action of air pressure and its reinforced structure. The pressure helps it maintain a shape that can roll, absorb bumps, and respond to steering.
When pressure drops, the tyre deforms more under the vehicle’s weight. Its sidewalls bend excessively with every revolution.
Rubber does not return all the energy used to bend it. Some becomes heat through a process called hysteresis. Repeated excessive flexing generates heat, which can weaken the tyre and contribute to separation or failure.
With little or no air, the rim can crush the collapsed tyre against the road. Rubber and reinforcing cords endure punishment they were never designed to withstand. Even a short journey on a flat can destroy the tyre internally and damage the rim.
The tyre in my photograph is shredded, with exposed cords and torn rubber. I cannot reconstruct every stage of its destruction, but the result is sobering.
Why Did the Steering Become Stiff?
I do not yet know, but I've got a couple of plausible explanations.
Low pressure in the replacement tyre could contribute to heavy steering, particularly at the front. Low or uneven tyre pressure can affect steering. A fault in the power steering system is another possibility.
The improvement while moving is useful information when I get to the mechanic, but it does not establish the cause or confirm that everything is fine as far as I'm concerned. Perhaps the wheel and the steering system need checking.
I cannot honestly say the flat-tyre journey damaged my power steering. I just don't see the connection; I may be wrong, the next couple of days will tell.
Was I Lucky?
Yes. I got home without a crash.
Could it have been worse? Absolutely.
Underinflation can increase rolling resistance, impair handling, and lengthen stopping distances. Further tyre failure could make the vehicle harder to control.
A pothole, sharp bend or emergency stop might have exposed those limitations. I could have damaged the wheel, lost control, or become stranded again.
Arriving safely does not mean the journey was safe.
The Lesson I Brought Home
I understand my decision that night. I was weighing the danger of staying against the danger of moving. Still, an inflated spare and a working jack would have given me more options.
My lesson is practical: check the spare, carry the correct tools. In my own defense, though, I took the car on the journey as a last option. I knew what could have happened, but decided to take the risk.
That night, I got home. On a bad day, I could have had it worse.