| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 43 |
| Headlamp aim out of alignment | 43 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 28 |
| Registration plate issues | 27 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Drive chain excessively loose |6.2.1d| | 13 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Indicator switch insecure |1.5.4| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Horn not working |1.7.3a| | 7 |
| Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Registration plate lamp issues | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Rear reflector missing (4.8.2 (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| | 3 |
| Handlebar mounting clamp loose |2.1.1a| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Offside Steering lock stop ineffective |2.1.3| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Direction indicator insecure |1.5.3b| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| An item not tested |Manual| | 2 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear 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 |
| Plate brake test indicates a severely juddering brake |3.3.B1b| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Position lamp not working Not tested due to brake light on at all time |4.2.1 |a|| | 1 |
| Lower Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Stop lamp not working control (4.3.1 (a) (ii)) | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Inner Rear Upper 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 |
| Inner Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Brake disc(s) has excessive run out (3.2.A1m) | 1 |
| Drive chain excessively loose (6.2.1d) | 1 |
| Rear Brake pedal has inadequate reserve travel (3.1.3b) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Centre Front Lower Brake component is severely distorted |3.1.5| | 1 |
| Stop lamp does not illuminate immediately a brake applies front and rear brakes |1.3.1a| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock Trapping thumb against tank on right lock |2.1.4 |b|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Fuel system component insecure fuel tank front retaining clip broken/missing |7.2.1b| | 1 |
| Rear Upper Shock absorber has an excessively worn bush Rear upper suspension linkage bearings have excessive play (5.3.2 (c)) | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Stop lamp not working Control two (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Fuel cap ineffective Will not open with key (6.1.3 (b) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Inner Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Steering headbearing has excessive free play (2.2.2) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp not working control two |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Stop lamp not working FRONT AND REAR SWITCH INOP (4.3.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Position lamp not working |4.2.1 |a|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |