| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 43 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 30 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 11 |
| Steering headbearing has excessive free play |2.2.2| | 11 |
| Registration plate issues | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 7 |
| Stop lamp not working |4.3.1 |a| |ii|| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Riders seat insecure |6.2.1a| | 6 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Nearside Steering lock stop ineffective |2.1.3| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Registration plate lamp issues | 4 |
| Rear Position lamp not working |4.2.1 |a|| | 4 |
| Offside Steering lock stop ineffective |2.1.3| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Nearside Steering lock stop missing |2.1.3| | 4 |
| Fuel cap sealing washer missing |7.2.2c| | 4 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 4 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| 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| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Rear position lamp missing |1.1.1a| | 2 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front suspension assembly component excessively misaligned |2.3.1| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Nearside Steering linkage locking device ineffective |2.1.3 |d|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Outer Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Fuel tank leaking excessively or a risk of fire Oil tank leaking onto exhaust. |6.1.3 |b| |ii|| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Central Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Brake lever has insufficient reserve travel rear brake lever (1.1.2 (a)) | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Lower Brake hose connection leaking |1.1.12 |c|| | 1 |
| Offside Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Forks in such a condition that steering control is adversely affected |2.2.2 |d| |ii|| | 1 |
| Nearside Footrest insecure |6.2.12 |a|| | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brake is released @rear lever |1.3.1e| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock |2.1.4 |a|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Rear suspension component excessively bent |2.4.A.1a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. Both |2.4.A.3b| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel cap missing (6.1.3 (b) (i)) | 1 |
| Riders seat insecure seat does not lock (6.2.5 (a) (ii)) | 1 |
| Offside Steering operation linkage fouling when handlebars turned from lock to lock steering not stopping on lock stops (2.1.4 (a)) | 1 |
| Offside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Centre Rear Upper Fuel cap sealing washer missing |7.2.2c| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Front Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Engine mounting/bracket excessively loose |6.1.8 |a| |ii|| | 1 |
| Fuel cap ineffective seal missing |6.1.3 |b| |i|| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Brake hose excessively deteriorated | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Steering linkage locking device ineffective |2.1.3 |d|| | 1 |
| Motorcycle structure excessively damaged left hand steering stop is damaged |6.1.1a| | 1 |
| Rear reflector on motorcycle missing L PLATE IS COVERING IT |1.4.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies n/w |1.3.1a| | 1 |
| Steering lock stop ineffective on left lock |2.1.3| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering Lock Stops Not Working (6.1.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock Nearside lock stop |2.1.4 |b|| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp aim not tested dipped beam not tested for aim as not working |4.1.2 |b|| | 1 |
| Fuel cap ineffective seal missing (6.1.3 (b) (i)) | 1 |
| Fuel system component leaking Gravity tap |7.2.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Stop lamp not working front lever |4.3.1 |a| |ii|| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Exhaust has a major leak of exhaust gases exhaust flange leaking |6.1.2 |a|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition silencer cracked |8.1.1 |a|| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |