| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Registration plate issues | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 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 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| 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)) | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Throttle operating incorrectly Fast running (6.2.7 (a) (i)) | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Offside Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride side stand insecure|does not return fully| |6.2.1h| | 1 |
| Front shock absorber seal failed and leaking oil R/H |2.3.3| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Drive belt sprocket carrier worn to excess |6.2.1e| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Drive belt worn to excess |6.2.1e| | 1 |
| Front Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Centre Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Front Brake lever excessively worn (1.1.15 (b)) | 1 |
| Fuel pipe union leaking (6.1.3 (b) (i)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Upper Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Chain guard insecure |6.2.1c| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp remains on when the brake is released rear switch |1.3.1e| | 1 |