| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 44 |
| Registration plate issues | 35 |
| Rear reflector on motorcycle missing |1.4.1| | 28 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Riders seat insecure |6.2.1a| | 9 |
| Steering headbearing has excessive free play |2.2.2| | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Drive chain excessively tight |6.2.1d| | 7 |
| Horn not working |1.7.3a| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 5 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Offside Steering lock stop ineffective |2.1.3| | 4 |
| 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| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front suspension assembly component loose |2.3.1| | 2 |
| Offside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Seat insecure |6.2.1a| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear Brake master cylinder has an excessively worn master cylinder pivot. |3.2.B5| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Lower Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake component has an inadequate repair |3.1.5| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Front wheel spindle loose |2.3.3a| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Indicator tell tale not operating correctly |1.5.2| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Handlebar deformed right hand bar |2.1.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear suspension component loose stabiliser link bottom securing bolt |2.4.A.1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Nearside Brake hose excessively kinked |3.2.B3a| | 1 |
| Nearside Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake hose which buldges |3.2.B4| | 1 |
| Offside Front Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Nearside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Braking system does not have an approriate system/s fitted according to its age |3.1.1| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Offside Front position lamp missing |1.1.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front An item not tested |Manual| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Direction indicator insecure |1.5.3b| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Offside Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Riders seat missing |6.2.1a| | 1 |
| Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear suspension component loose rubbers in rear hub missing ? |2.4.A.1a| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |