Tyre Repairs

Challenger Tyres follow British Tyre Manufactures recommendation on the repairing of a punctured tyre British Standard BS AU 159.

Challenger Tyres will only repair tyres that have been damaged in the central three quarters of the tread known as the 'T' area as per the diagram below.

 

If the tyre in the above diagram was a 205/55/16 then the 205 would be the tyres nominal section width giving a repair width (T) area of 144mm giving 72mm each side of the tyres centre line.

 

Tyre nominal section width 'T' value (mm) Tyre nominal section width 'T' value (mm)
125 75 245 172
135 81 255 179
145 87 265 186
155 93 275 193
165 107 285 200
175 114 295 207
185 120 305 214
195 127 315 221
205 144 325 228
215 151 335 235
225 158 345 242
235 165

6mm is the maximum diameter of penetration damage at the base of puncture in the ‘T’ area.

Challenger will always check a tyre thoroughly before any repair is done. Tyres displaying any defects from the list below will not be repaired.

  • Inadequate tread depth (Legal minimum 1.6mm)
  • Splits, cuts, rubber crazing/cracking
  • Previous repairs
  • Significant contamination by solvents e.g. liquid sealants
  • Bead damage
  • Secondary effects, e.g. under-inflation/deflation damage or savaging by the point of a penetrating object
  • Tread or sidewall rubber separation
  • Penetrations that are on the border line of the ‘T’ area will be done at the discretion of the tyre technician.

The visual inspection is very important part of checking the punctured tyre any doubts the tyre should not be repaired.