| Most common failures | No# failures |
|---|
| Registration plate issues | 62 |
| Rear reflector on motorcycle missing |1.4.1| | 58 |
| Headlamp aim out of alignment | 28 |
| Rear reflector missing (4.8.2 (a) (ii)) | 13 |
| Registration plate lamp issues | 9 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Rear reflector on motorcycle missing (1.4.1) | 2 |
| Steering headbearing has excessive free play |2.2.2| | 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 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Headlamp not working on dipped beam BULB REPLACED (4.1.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Stop lamp not working front switch (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Rear Stop lamp not working rear brake switch 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 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies Rear brake light switch |1.3.1a| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Shock absorber has a serious fluid leak Front fork seals leaking oil |5.3.2 |b|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition Exhaust too noisy |8.1.1 |a|| | 1 |
| Rear Rear reflector missing Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Central Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Brake component modification unsafe Rear brake marked FOR RACE USE ONLY (1.1.21 (d) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Lower Brake hose fouling |3.2.B3b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear 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 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Central Rear Upper Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d) | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Offside Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Centre Front Upper Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Front subframe bolt nut missing |6.2.1h| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Rear sprocket nut missing |6.2.1h| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort Rear brake inop |3.3.A1c| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies footbrake application |1.3.1a| | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 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 |