| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Horn not working |1.7.3a| | 7 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Direction indicator missing |1.5.1a| | 2 |
| Offside Front Direction indicator missing |1.5.1a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Registration plate issues | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Fuel tank leaking |7.2.1a| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake locking device missing brake torque arm |3.2.A1e| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Footrest missing both sides |6.2.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Horn control not functioning. not opperating every time its pressed |1.7.2b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Horn missing |1.7.1| | 1 |
| Fuel cap missing |7.2.2a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Upper Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front suspension assembly component missing |2.3.1| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Brake cable badly frayed |3.2.A1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Brake lever attachment screws missing |3.1.2b| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Front suspension assembly component missing split pin missing |2.3.1| | 1 |
| Rear Footrest missing both |6.2.1a| | 1 |
| Fuel system component leaking cap |7.2.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Brake lever insecure lock nut missing |3.1.2a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride gear lever bolt |6.2.1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride clutch lever retaining bolt lock nut |6.2.1h| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Central Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear suspension bush has excessive free play swing arm |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Outer Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain adjuster locknut |6.2.1h| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp all and dim |1.5.1c| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear wheel rotation likely to be impeded THE REAR CHAIN SPROCKET FIXING ARE LOOSE |6.2.1b| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake locking device missing back plate rod arm |3.2.A1e| | 1 |
| Nearside Rear Rear shock absorber insecurely mounted bolt loose |2.4.A.3b| | 1 |
| Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Suspension arm insecurely attached |5.3.3 |a| |i|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on not working |1.1.3a| | 1 |
| Front Brake lever has restricted free movement brake lever fouls on fair and puts brake on |1.1.15 |e|| | 1 |
| Rear Suspension arm pin or bush excessively worn excessive movement in rear swing arm bushes/bearings |5.3.4 |a| |i|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure air box fixing missing & manifold clip insecure |6.1.1 |b| |i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Drive chain horseshoe locking device likely to become detached chain link back plate missing |6.1.7 |j| |ii|| | 1 |
| Brake back plate insecure all torque arm locking devises missing |1.1.14 |d|| | 1 |
| Rear Wheel has a missing rivet/s or bolts |5.2.2 |e| |i|| | 1 |
| Rear Wheel fixing missing |single fixing| |5.2.1 |a| |ii|| | 1 |
| Rear Wheel more than one fixing missing locking devise missing |5.2.1 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected increase in throttle rpm on lock |6.2.7 |a| |ii|| | 1 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Footrest missing both rear (6.2.12 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear reflector reflecting white to the rear (4.8.2 (a) (ii)) | 1 |