SEARCH FOR AN MOT TEST CENTRE IN 3 EASY STEPS
FIND AN MOT TEST STATION Find



UKmot.com

PRE MOT CHECKS


Tyre Failure Rates



Failure Analysis by Component / RFR for Tyres for period Aug'07 to July'08




The latest figures, released by the Department of Transport, of failure rates in the UK for tyres. The failure rates are broken down by tyre composition and tyre type.
2007 2007 2007 2007 2007 2008 2008 2008 2008 2008 2008 2008
Component RFR ID RfR (Reason for Rejection) Description Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul
Tyre(s) type 8374 One tyre is of a different nominal size or aspect ratio to any other on the same axle. 4705 4622 5082 4594 3222 4885 4838 4805 5246 4894 4725 4802
Tyre(s) type 8376 One tyre is of a different nominal size or aspect ratio to any other on the same axle. 591 561 651 574 375 585 607 599 706 644 618 647
Tyre(s) type 8378 one tyre is of a different type of structure from another tyre on the same axle 92 91 100 68 55 90 77 95 108 99 108 95
Tyre(s) type 8380 a 3- or 4-wheeled vehicle fitted with single wheels and a cross-ply or bias-belted tyre fitted on rear axle and radial-ply tyre on front axle. 7 3 4 1 6 4 4 6 4 2 6
Tyre(s) type 8382 a 3- or 4-wheeled vehicle fitted with single wheels and a cross-ply tyre fitted on rear axle and a bias-belted tyre on front axle. 2 1 2 1 1 2 2 1 4
Tyre(s) type 8383 Special lightweight or space saving wheels and tyres fitted as a road wheel 269 265 339 311 242 328 343 335 374 308 327 356
Tyre(s) condition 8384 a tyre has a cut the length of which is at least 25 mm or 10% of section width, whichever is greater, deep enough to reach the ply or cords 19223 18844 20018 16328 10313 15549 17294 19519 21598 20924 21215 21631
Tyre(s) condition 8385 a tyre has any of its ply or cords exposed 17484 17585 18703 15656 9991 15617 15203 16814 18706 18355 19055 20149
Tyre(s) condition 8386 a re-cut tyre fitted to a vehicle not permitted to be so equipped 78 59 70 69 41 51 45 56 69 63 69 59
Tyre(s) condition 8387 a tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber 7028 6816 6907 5811 3714 6086 6889 7374 7641 7736 7431 7422
Tyre(s) condition 8388 a tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber 7725 7454 7593 6287 4449 7245 7933 8701 9038 8664 8234 8192
Tyre(s) condition 8389 a tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber 4133 3904 4153 3303 2076 3139 3742 4119 4751 4890 4932 5058
Tyre(s) condition 8390 a tyre incorrectly seated on the wheel rim 173 176 187 183 112 155 169 184 177 187 182 174
Tyre(s) condition 8391 a tyre not fitted in compliance with the manufacturers sidewall instruction, e.g. as asymmetric with a sidewalk marked 'outer' fitted with the marking to the inner side of the wheel 4445 4519 5060 4279 2954 4481 4595 4828 5381 4932 4993 5087
Tyre(s) condition 8392 Tyres on twin wheels making wall contact due to under-inflation or incorrect fitment. 31 31 40 36 25 32 25 30 32 30 29 34
Tyre(s) condition 8393 A tyre fouling a part of the vehicle 1395 1418 1550 1348 730 1076 1205 1145 1331 1398 1386 1402
Tyre tread pattern 8394 The grooves of the tread pattern are not at least 1.6mm throughout a continuous band comprising the central three-quarters of the breadth of tread, and round the entire outer circumference of the tyre 384766 399550 445886 384653 272652 425.354 417965 455976 561588 431030 429383 454458
Tyre tread pattern 8395 A tyre with a tread pattern not visible over the whole tread area and the depth of which is not at least 1mm thoughout a single band round the entire outer circumference of the tyre of at least three-quarters of the breadth of tread 528 596 620 494 346 538 531 586 567 593 549 657
Tyre tread pattern 8396 A tyre with a tread pattern not visible over the whole tread area 124 148 175 133 95 172 160 170 180 109 101 137
Tyre(s) valve stem 8397 a seriously damaged or misaligned valve stem which could cause sudden deflation of the tyre 533 536 617 543 327 587 606 614 599 587 601 605
Tyre(s) valve stem 8398 a seriously damaged or misaligned valve stem which could cause sudden deflation of the tyre 405 406 419 357 268 432 452 514 545 557 515 520
Tyre tread pattern 8587 A tyre with a tread pattern not visible over the whole tread area and the depth of which is not at least 1mm thoughout a single band round the entire outer circumference of the tyre of at least three-quarters of the breadth of tread 886 813 809 730 488 771 777 853 803 732 706 756
Tyre tread pattern 8588 A tyre with a tread pattern not visible over the whole tread area 214 251 254 230 145 176 200 204 207 217 229 227
Tyre tread pattern 8589 The grooves of the tread pattern are not at least 1.6mm throughout a continuous band comprising the central three-quarters of the breadth of tread, and round the entire outer circumference of the tyre 6132 6528 7073 6477 4339 6607 6425 6972 7124 6579 6369 6749
Tyre tread pattern 8590 The grooves of the tread pattern are not at least 1.6mm throughout a continuous band comprising the central three-quarters of the breadth of tread, and round the entire outer circumference of the tyre 281 261 353 248 187 196 166 167 162 198 212 240
Tyre tread pattern 8591 A tyre with a tread pattern not visible over the whole tread area and the depth of which is not at least 1mm thoughout a single band round the entire outer circumference of the tyre of at least three-quarters of the breadth of tread 15 16 7 10 5 9 19 21 13 18 4 11
Tyre tread pattern 8592 A tyre with a tread pattern not visible over the whole tread area 13 13 11 7 1 1 1 1 1
Tyre tread pattern 8593 A tyre with a tread pattern not visible over the whole tread area 2 1 3 3 1 2 6 4 11 4 6 1
Sum: 461260 475468 526686 452731 317153 494170 490277 534692 546963 513755 511983 539480


Component RFR ID RfR (Reason for Rejection) Description No. of Failures By RFR No. of MOT Tests No. of MOT Test Failures % of Component Failures Failing On Total Tests Component Failures as % of Total Failures by Component
Tyre(s) type 8374 One tyre is of a different nominal size or aspect ratio to any other on the same axle. 56420 0.16% 0.96%
Tyre(s) type 8376 One tyre is of a different nominal size or aspect ratio to any other on the same axle. 7158 0.02% 0.12%
Tyre(s) type 8378 one tyre is of a different type of structure from another tyre on the same axle 1078 0.0% 0.02%
Tyre(s) type 8380 a 3- or 4-wheeled vehicle fitted with single wheels and a cross-ply or bias-belted tyre fitted on rear axle and radial-ply tyre on front axle. 47 0.0% 0.00%
Tyre(s) type 8382 a 3- or 4-wheeled vehicle fitted with single wheels and a cross-ply tyre fitted on rear axle and a bias-belted tyre on front axle. 16 0.0% 0.00%
Tyre(s) type 8383 Special lightweight or space saving wheels and tyres fitted as a road wheel 3797 0.01% 0.06%
Tyre(s) condition 8384 a tyre has a cut the length of which is at least 25 mm or 10% of section width, whichever is greater, deep enough to reach the ply or cords 222456 0.64% 3.79%
Tyre(s) condition 8385 a tyre has any of its ply or cords exposed 203318 0.59% 3.47%
Tyre(s) condition 8386 a re-cut tyre fitted to a vehicle not permitted to be so equipped 729 0.00% 0.01%
Tyre(s) condition 8387 a tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber 80855 0.23% 1.38%
Tyre(s) condition 8388 a tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber 91515 0.26% 1.56%
Tyre(s) condition 8389 a tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber 48200 0.14% 0.82%
Tyre(s) condition 8390 a tyre incorrectly seated on the wheel rim 2059 0.01% 0.04%
Tyre(s) condition 8391 a tyre not fitted in compliance with the manufacturers sidewall instruction, e.g. as asymmetric with a sidewalk marked 'outer' fitted with the marking to the inner side of the wheel 55554 0.16% 0.95%
Tyre(s) condition 8392 Tyres on twin wheels making wall contact due to under-inflation or incorrect fitment. 375 0.00% 0.01%
Tyre(s) condition 8393 A tyre fouling a part of the vehicle 15384 0.04% 0.26%
Tyre tread pattern 8394 The grooves of the tread pattern are not at least 1.6mm throughout a continuous band comprising the central three-quarters of the breadth of tread, and round the entire outer circumference of the tyre 4963261 14.36% 84.63%
Tyre tread pattern 8395 A tyre with a tread pattern not visible over the whole tread area and the depth of which is not at least 1mm thoughout a single band round the entire outer circumference of the tyre of at least three-quarters of the breadth of tread 6605 0.02% 0.11%
Tyre tread pattern 8396 A tyre with a tread pattern not visible over the whole tread area 1702 0.0% 0.03%
Tyre(s) valve stem 8397 a seriously damaged or misaligned valve stem which could cause sudden deflation of the tyre 6755 0.02% 0.12%
Tyre(s) valve stem 8398 a seriously damaged or misaligned valve stem which could cause sudden deflation of the tyre 5390 0.02% 0.09%
Tyre tread pattern 8587 A tyre with a tread pattern not visible over the whole tread area and the depth of which is not at least 1mm thoughout a single band round the entire outer circumference of the tyre of at least three-quarters of the breadth of tread 9104 0.03% 0.16%
Tyre tread pattern 8588 A tyre with a tread pattern not visible over the whole tread area 2554 0.01% 0.04%
Tyre tread pattern 8589 The grooves of the tread pattern are not at least 1.6mm throughout a continuous band comprising the central three-quarters of the breadth of tread, and round the entire outer circumference of the tyre 77374 0.22% 1.32%
Tyre tread pattern 8590 The grooves of the tread pattern are not at least 1.6mm throughout a continuous band comprising the central three-quarters of the breadth of tread, and round the entire outer circumference of the tyre 2671 0.01% 0.05%
Tyre tread pattern 8591 A tyre with a tread pattern not visible over the whole tread area and the depth of which is not at least 1mm thoughout a single band round the entire outer circumference of the tyre of at least three-quarters of the breadth of tread 148 0.0% 0.0%
Tyre tread pattern 8592 A tyre with a tread pattern not visible over the whole tread area 49 0.0% 0.0%
Tyre tread pattern 8593 A tyre with a tread pattern not visible over the whole tread area 44 0.00% 0.00%
Sum: 5864618 34568203 9890157 100%


Note: The sum of the failures shown against each RfR can exceed the total failures for the component.
This is because where there are 2 or more
RfR for a particular component it is only counted once at component level.

For example, if a vehicle fails as follows:
RfR ID 8394 - nearside front tyre worn close to legal limit
RfR ID 8589 - offside front tyre worn close to legal limit

The number of failures at the component (tyre tread pattern) level will be 1 even though there are 2 failures at RfR level.

This website uses cookies to ensure you get the best experience on our website More info


Got it!



MOT Test | Cookie Policy | Terms/Conditions | Copyright 2000 - 2017 UKMOT.com. All rights reserved