| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 62 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 46 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 33 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 27 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 20 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 20 |
| Throttle operating incorrectly |6.2.1f| | 15 |
| Front wheel bearings have excessive free play |2.3.5b| | 14 |
| Registration plate issues | 14 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 12 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 12 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 11 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 9 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 9 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 9 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 8 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 7 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 7 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Front Position lamp not working (4.2.1 (a)) | 6 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Horn not working |1.7.3a| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Exhaust excessively deteriorated |7.1.1a| | 5 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Brake hose excessively deteriorated | 4 |
| Headlamp switch faulty |1.2.4| | 4 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Motorcycle structure excessively corroded |6.1.1a| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Brake pedal cannot be released smoothly |3.1.3d| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 3 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Brake excessively binding |1.2.1 |f|| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Nearside Rear Exhaust mounting missing |7.1.1c| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Rear Rear suspension component excessively corroded. |2.4.A.1a| | 2 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Stop lamp not working |1.2.1b| | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Offside Front Brake disc fractured |1.1.14 |a| |ii|| | 2 |
| Rear suspension has an inadequate repair of a load bearing member or its supporting structure. |2.4.A.2d| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| An item not tested |Manual| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Nearside Front Brake hose which buldges |3.2.B4| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Offside Front Brake pipe union leaking fluid |3.2.B4| | 2 |
| Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |