🔧 How Run-Flat Tires Work
There are two main types:
- Self-supporting:
- Have reinforced sidewalls that support the vehicle even with no air.
- You can usually drive up to 50 miles (80 km) at a reduced speed (typically up to 50 mph or 80 km/h).
- Support ring system:
- A hard rubber or composite ring is attached to the wheel inside the tire, carrying the load if air pressure drops.
- More common in specialized or military vehicles.
âś… Advantages of Run-Flat Tires
- Drive After a Puncture
- No need to stop immediately; gives you time to find a safe place or reach a service center.
- No Need for a Spare Tire
- Saves space and weight in the car (many vehicles with RFTs don’t have spare tires at all).
- Improved Safety
- Reduced risk of losing control from a blowout since the tire maintains its shape better when deflated.
- Convenience
- Avoid roadside tire changes in dangerous or inconvenient situations.
❌ Potential Drawbacks
- Harsher Ride: Stiffer sidewalls can lead to a firmer, less comfortable ride.
- More Expensive: Generally cost more than standard tires.
- Limited Repairability: Not all RFTs can be repaired after a puncture.
- Shorter Tread Life: Some users report faster wear compared to regular tires.
Contact Doylestown Auto Repair at 267-279-9477 or visit our website at www.doylestownautoshop.com to schedule an appointment to have your car serviced!