| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 16 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Registration plate issues | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 5 |
| Horn not working |1.7.3a| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Drive chain excessively loose |6.2.1d| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 4 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Stop lamp not working from rear brake (4.3.1 (a) (ii)) | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp not working front switch faulty (4.3.1 (a) (ii)) | 1 |
| Offside Rear Brake clevis joint insecure brake torque arm insecure on brake plate end and no split pin (1.1.15 (c)) | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Direction indicators flashing less than 60 times a minute all |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Engine mounting/bracket missing (6.1.8 (a) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Brake back plate|s| insecure |3.2.A1j| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected Adjusted Cable as to tight on Lock to Offside. (6.2.7 (a) (ii)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| An item not tested |Manual| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working on rear brake |4.3.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure lock nuts |2.4.A.2b| | 1 |