| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Registration plate issues | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Headlamp insecure |1.2.3b| | 4 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Horn not working |1.7.3a| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 3 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Headlamp switch insecure |1.2.4| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Centre Front Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Brake hose fouling |3.2.B3b| | 1 |
| Centre Rear Lower Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Nearside Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Offside Front Upper Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Brake component modification unsafe leaking brake fluid (1.1.21 (d) (i)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 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 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected idle speed excessive high |6.2.7 |a| |ii|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Rear Brake locking device missing |3.2.A1e| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Throttle operating incorrectly Throttle Moving With Steering |6.2.7 |a| |i|| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| An item not tested |Manual| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Direction indicator missing |1.5.1a| | 1 |
| Offside Direction indicator missing |1.5.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Lower Motorcycle structure cracked |6.1.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |