| Most common failures | No# failures |
|---|
| Drive chain excessively loose |6.2.1d| | 9 |
| Headlamp aim out of alignment | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Registration plate issues | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Suspension arm corroded and seriously weakened swinging arm (5.3.3 (b) (i)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Drive chain excessively loose drive chain to slack.. correct play 35mm (6.1.7 (c) (i)) | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Inner Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Throttle operating incorrectly sticks keeping revs up |6.2.1f| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |