Repairing or Changing a Tyre
Changing a tyre can be a daunting prospect. So Blackcircles.com has come up with a few hints that can make life easier when changing a tyre:
- Gloves - Keep a pair in the car at all times.
- Bin Liner - Something to put a muddy tyre into. Keeps your car clean.
- Sturdy Board - If the ground is soft the jack may sink. Use as a stand.
- Wheel Nuts - Grease threads lightly to allow easy removal.
- Wheel Nuts - Make sure these are tightened correctly.
- Wheel Nuts - Correct tightening will allow easier removal next time.
- Wheel Balancing - Always have this done after repair.
- Tyre Pressure - Never drive too far or too fast after replacing a tyre until the pressure is checked and at the correct level - refer to your Owners Manual.
- Spare Tyre - Check and examine condition regularly.
PUNCTURES
It is not always necessary to replace a tyre when punctured - in some cases the tyre can be repaired. However Blackcircles.com advises that you get the tyre checked by one of our Professional Fitters. If you have any queries, please call 0845 620 2000 for advice.
Here are some basic guidelines.
What can be repaired?
In accordance with British Standards (BSAU 159) only certain areas of the tyre can be repaired. This is demonstrated below by Area "T"
Repairable Area - Definition of Area'T'
The repairable area 'T' is defined as a percentage of the tyre's nominal section width and depends on the tyre type and size.
Radial Ply Tyres - Minor Repairs to Radial Tyres for Cars, Vans, and Commercial Vehicles
| CAR | |
|---|---|
| Up to and including 155mm | 60% |
| Above 155mm to 200mm | 65% |
| Above 200mm | 70% |
| Commercial Vehicle | |
| Up to and including 225mm | 60% |
| Above 225mm to 305mm | 65% |
| Above 305mm | 70% |
| Type of Tyre | Maximum size of damage at base of injury in Area T |
|---|---|
| Car | 6mm |
| Commercial Vehicle | 10mm |
Cross Ply Tyres - Minor repairs to Cross Ply tyres for Cars, Vans, and Commercial Vehicles
| CAR | |
|---|---|
| Up to and including 155mm | 60% |
| Above 155mm to 200mm | 65% |
| Above 200mm | 70% |
| Commercial Vehicle | |
| Up to and including 225mm | 60% |
| Above 225mm to 305mm | 65% |
| Above 305mm | 70% |
| Type Of Tyre | Maximum size of damage at base of injury in Area T |
|---|---|
| Car | 6mm |
| Commercial Vehicle | 10mm |
Motorcycle & Scooter Cross Ply Tyres - Minor Repairs for Tyres Motorcycles and Scooters
| Type of Tyre | Max. Size of Damage | Max. No of Repairs |
|---|---|---|
| Up to J Speed Rating | 6 mm | 2 |
| Between J and V Speed Rating | 3 mm | 1 |
| Above V Speed Rating | - | 0 |
Blackcircles.com would like to point out that certain checks are mandatory before repairing any tyre. (General Requirements of BSAU159f).
Check the Following
- Minimum Tread Depth Requirement. (Cars 1.6mm, Truck & Motorcycle 1.0mm)
- Runflat Tyre Damage
- Contamination
- Ageing/deterioration of the rubber
- Bead/Liner Damage
- Previous repairs not in accordance with BS159
If any of the above is evident it is advised that you do not repair the tyre. These are only guidelines, and not an exhaustive list. Basic principles of common sense must be adhered to when deciding upon puncture repair. If in any doubt contact Blackcircles.com on 0845 620 2000 and we can arrange an inspection.
All Tyres must be checked before repair. Remember - Safety First!