| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 18 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 16 |
| Registration plate issues | 14 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 13 |
| Steering headbearing has excessive free play |2.2.2| | 13 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 12 |
| Front Steering headbearing has excessive free play |2.2.2| | 7 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Horn not working |1.7.3a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Fuel cap sealing washer missing |7.2.2c| | 4 |
| Direction indicators not working |1.5.1c| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Front Horn not working |1.7.3a| | 3 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 3 |
| Rear Brake lever insecure |3.1.2a| | 3 |
| Rear Brake lever mounting insecure |3.1.2a| | 3 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear Rear wheel insecure |4.2.3b| | 2 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Front Direction indicator missing |1.5.1a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Throttle operating incorrectly |6.2.1f| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Front Direction indicator insecure |1.5.3b| | 2 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Indicator tell tale not functioning |1.5.2| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front suspension assembly component excessively corroded. |2.3.1| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Centre Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Lower Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Upper Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Drive belt guard insecure |6.2.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake component has an inadequate repair |3.1.5| | 1 |
| Brake lever pivots excessively worn |3.1.3a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| 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| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| An item not tested |Manual| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Centre Rear Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Centre Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Lower Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Brake drum|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Offside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake lever is inoperative |3.1.3c| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Rear Upper Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |