| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 46 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 18 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Horn not working |1.7.3a| | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 8 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Registration plate issues | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Front suspension has inadequate damping effect. |2.3.6c| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Indicator switch defective |1.5.4| | 5 |
| Fuel cap sealing washer missing |7.2.2c| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Horn control defective |1.7.2a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Registration plate lamp issues | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 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 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Lower Steering headbearing has excessive free play |2.2.2| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Direction indicator obscured |1.5.1a| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 2 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering lock stop ineffective Right hand |2.1.3| | 1 |
| Brake lever mounting insecure Rear brake lever pivot bolt lock nut missing |3.1.2a| | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Indicator switch does not operate the direction indicators on the side selected left |1.5.4| | 1 |
| Front shock absorber seal failed and leaking oil both stanchions badly pitted |2.3.3| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition silencer end can missing (8.1.1 (a)) | 1 |
| Central Front Upper Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Central Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear 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 |
| Nearside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Offside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Rear spring corroded and seriously weakened |2.4A1b|ii|| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Steering headbearing excessively stiff or notchy on full left lock |2.2.2 |f| |i|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected accelerates on right turn (6.2.7 (a) (ii)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Offside Indicator switch defective |1.5.4| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Rear suspension component seized |2.4A2a|ii|| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake cable has restricted free movement |1.1.15 |e|| | 1 |
| Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front lever |1.3.1a| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Handlebar grip insecure to handlebar Both (2.2.1 (d) (ii)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Brake lever insecure |3.1.2a| | 1 |
| Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Offside Front Shock absorber has a serious fluid leak Leaking onto the disc. (5.3.2 (b)) | 1 |
| Fuel cap ineffective Seal from the cap is missing causing fuel leak. (6.1.3 (b) (i)) | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear position lamp missing |1.1.1a| | 1 |
| An item not tested |Manual| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear suspension bearing has excessive free play Excessive play in engine link bearings |2.4.A2a|i|| | 1 |
| Nearside Brake lever attachment screws loose |3.1.2b| | 1 |
| Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |