| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Front wheel bearings have excessive free play |2.3.5b| | 10 |
| Registration plate issues | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Drive chain excessively loose |6.2.1d| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Brake hose damaged | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Fuel tank leaking |7.2.1a| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Nearside Front Direction indicators not working Replaced bulb |1.5.1c| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Inner Drive chain excessively loose |6.2.1d| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Centre Front Lower Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Centre Fuel pipe leaking |7.2.1a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Front Brake component leaking fluid |3.2.B4| | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking rear luggage carrier
|6.1.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Centre Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Brake component insecure (1.1.21 (c)) | 1 |
| Offside Front Brake component insecure (1.1.21 (c)) | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Direction indicator affected by the operation of another lamp both indicators staying on |1.5.1c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Direction indicators not working not working both |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies not working |1.3.1a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Motorcycle structure cracked L/H Engine Mount |6.1.1a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Centre Drive chain excessively tight |6.2.1d| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Front wheel insecure |4.2.3b| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Upper Footrest missing |6.2.1a| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Brake lever is inoperative |3.1.3c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Brake lever attachment screws missing lock nut missing |3.1.2b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Offside Front Footrest insecure locking device missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest insecure locking device missing (6.2.12 (a)) | 1 |
| Nearside Front Footrest insecure locking device missing (6.2.12 (a)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |