| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| All direction indicators not working (4.4.1 (a) (ii)) | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Registration plate issues | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Brake pedal insecure |3.1.2a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing reflector missing |1.4.1| | 1 |
| Front Front wheel spindle securing nut locking device missing split pin missing |2.3.3a| | 1 |
| Rear Front wheel spindle securing nut locking device missing split pin missing |2.3.3a| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Wheel more than one fixing missing Spindle split pin missing |5.2.1 |a| |ii|| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock |2.1.4 |a|| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear shock absorber has inadequate damping effect. Monoshock |2.4.A.3b| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Drive chain fouling another component chainguard bolt |6.2.1d| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicator deteriorated and function impaired all indicators need attention |1.5.3a| | 1 |
| Rear suspension bush has excessive free play swinging arm bushes |2.4.A2a|i|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Footrest insecure splitpin missing |6.2.1a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Stop lamp lens defective such that the emitted light is adversely affected |4.3.1 |b| |ii|| | 1 |
| Offside Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Drive chain sprocket excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn missing |1.7.1| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Fuel hose leaking |6.1.3 |b| |i|| | 1 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Stop lamp light intensity significantly reduced |4.3.3 |a| |ii|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Offside Front Lower Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected Allen bolts on spindle clamp, finger tight. (5.2.1 (c) (ii)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Footrest missing BOTH (6.2.12 (a)) | 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 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake component insecure brake anti torque bolt locking device missing (1.1.21 (c)) | 1 |
| Stop lamp not working rear foot brake control (4.3.1 (a) (ii)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Shock absorber has negligible damping effect bottoming out (5.3.2 (b)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Fuel system component leaking Carb (6.1.3 (b) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Steering linkage locking device missing split pin front wheel spindle (2.1.3 (d)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp lens seriously defective "Kick up" wrong side (4.1.1 (b) (ii)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Front Wheel fixing missing (single fixing) (5.2.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Position lamp missing (4.2.1 (a)) | 1 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 1 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Front Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Offside Front Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Front Shock absorber has a serious fluid leak BOTH (5.3.2 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |