| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Rear reflector missing |4.8.2 |a| |ii|| | 6 |
| Registration plate issues | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Horn not working |1.7.3a| | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Registration plate lamp issues | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Drive chain excessively tight |6.2.1d| | 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 |
| Stop lamp not working rear brake control |4.3.1 |a| |ii|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Front Position lamp light intensity significantly reduced pulsing |4.2.3 |a| |ii|| | 1 |
| Offside Front Position lamp light intensity significantly reduced pulsing |4.2.3 |a| |ii|| | 1 |
| Nearside Rear Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Front Brake pipe connection leaking control 1 |1.1.11 |b|| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls stop lamp not illuminating from front control (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Fuel tank leaking (6.1.3 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (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 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Central Rear Lower Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Central Front Lower Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Lower Brake caliper operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Wheel bearing has excessive play Both front (5.1.3 (a) (i)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up Both rear (5.1.3 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 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 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever pivot has excessive free play |1.1.1 |b|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Central Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Offside Lower Brake lever has restricted free movement BENT SO THE FOOT MISSES THE PEDAL WHEN TRYING TO APPLY FOOT BRAKE (1.1.15 (e)) | 1 |
| Central Front Headlamp insecure AND DIP BEAM TO HIGH (4.1.1 (c)) | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front position lamp insecure headlamp |1.1.1c| | 1 |
| Fairings insecure and likely to impede the steering front mudguard broken |2.1.2e| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Rear Steering linkage locking device missing (2.1.3 (d)) | 1 |
| Front Brake excessively binding Front wheel bearing not tested due to excessive brake bind. (1.2.1 (f)) | 1 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp Effected by indicator operation. (4.2.3 (b)) | 1 |
| Stop lamp adversely affected by the operation of another lamp Effected by indicator operation. (4.3.3 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front brake does not illuminate brake light when operated. (4.3.2 (a) (iii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle is increasing engine RPM excessively when steering is operated lock to lock & also slightly when motorcycle is lent over to 1 side slightly. (6.2.7 (a) (ii)) | 1 |
| Offside Rear Wheel spindle locking device missing Rear wheel OS fixing nut missing securing split pin. (5.2.1 (d)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |