| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Horn not working |1.7.3a| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Registration plate issues | 5 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Registration plate lamp issues | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake hose connection leaking |1.1.12 |c|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Nearside Front Horn not working |1.7.3a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Rear All direction indicators obviously incorrectly positioned solo motorcycles ??? 240mm at the front and 180mm at the rear |4.4.3 |a|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Rear Upper Direction indicators not working |1.5.1c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Horn control defective |1.7.2a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected REVS ARE DISPROPORTIONATE TO THROTTLE POSITION. |6.2.7 |a| |ii|| | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Front Horn not working (7.7 (a)) | 1 |