| Most common failures | No# failures |
|---|
| Registration plate issues | 12 |
| Headlamp aim out of alignment | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Registration plate lamp issues | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Horn not working (7.7 (a)) | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Offside Front Footrest insecure (6.2.12 (a)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls switch (4.3.2 (a) (iii)) | 2 |
| Rear Direction indicator obviously incorrectly positioned indicators incorporated into rear aftermarket light, too close together (4.4.3 (a)) | 1 |
| Stop lamp not working From brake pedal (4.3.1 (a) (ii)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock brake hose catching (2.1.4 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front not working (4.3.2 (a) (iii)) | 1 |
| Front Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Drive chain horseshoe locking device likely to become detached soft link |6.1.7 |j| |ii|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp emits other than a steady red light Intermittent (4.3.3 (a) (ii)) | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front mudguard insecure rear |2.3.7| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Direction indicator obscured |1.5.1a| | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Offside Front Direction indicator lens defective such that the emitted light is adversely affected missing (4.4.1 (b) (ii)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake switch faulty |1.3.1a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no pattern with coloured bulbs |4.1.2 |a|| | 1 |
| Position lamp light intensity significantly reduced bulbs flashing |4.2.3 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Headlamp incorrect colour |4.1.4 |a|| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Stop lamp not working rear switch |4.3.1 |a| |ii|| | 1 |
| Front Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak both (5.3.2 (b)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not emit a steady light front switch faulty |1.3.1b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake pedal pivot excessively tight (1.1.1 (a)) | 1 |
| Forks excessively corroded front fork stanchions rusty (2.2.2 (d) (i)) | 1 |
| Rear Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Central Rear Lower Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Direction indicators flashing more than 120 times per minute both |1.5.1c| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |