| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 42 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 26 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 21 |
| Stop lamp remains on when the brake is released |1.3.1e| | 16 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Registration plate issues | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 6 |
| Stop lamp remains on when the brakes are released | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Horn not working |1.7.3a| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Horn control defective |1.7.2a| | 3 |
| Front Brake grabbing severely (1.2.1 (c)) | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Rear Brake lever mounting insecure |3.1.2a| | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear Brake lever insecure |3.1.2a| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Rear reflector on motorcycle obscured |1.4.2b| | 2 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Front mudguard insecure |2.3.7| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Front Decelerometer brake test indicates a severely grabbing brake |3.3.E1e| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Nearside Horn control defective |1.7.2a| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Rear An item not tested |Manual| | 1 |
| Brake performance not tested |3.3| | 1 |
| Nearside Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Stop lamp not working front switch faulty |4.3.1 |a| |ii|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Registration plate lamp issues | 1 |
| Rear Brake excessively binding slackened off adjusting nut (1.2.1 (f)) | 1 |
| Front Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Nearside Front Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Stop lamp lens defective such that the emitted light is adversely affected |4.3.1 |b| |ii|| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Centre Rear Upper Stop lamp insecure |1.3.3b| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lining(s) incorrectly mounted (1.1.13 (c)) | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Rear Brake lever insecure |3.1.2a| | 1 |
| Offside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear Lower Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Centre Front Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Upper Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Front Upper Brake lever cannot be applied smoothly |3.1.3d| | 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 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear suspension component excessively bent |2.4.A.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Shock absorber has negligible damping effect no damping forks have no travel (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Shock absorber has a serious fluid leak o/s and n/s oil seals leaking , both fork tubes pitted (5.3.2 (b)) | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Front An item not tested |Manual| | 1 |
| Fairings so located that it is likely to impede the steering front mud guard insecure. could foil steering. |2.1.2e| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Nearside Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp remains on when the brake is released both levers |1.3.1e| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 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 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Front Horn control defective |1.7.2a| | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |