| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 49 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 21 |
| Front Brake excessively binding (1.2.1 (f)) | 12 |
| Front Brake excessively binding |1.2.1 |f|| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Horn not working |1.7.3a| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Registration plate issues | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Front Front mudguard insecure |2.3.7| | 2 |
| Horn not working (7.7 (a)) | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Stop lamp emits other than a steady red light |1.3.1b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Brake pipe likely to become detached or damaged (1.1.11 (d) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Exhaust silencer insecure Fouling rear shock absorber (8.1.1 (b) (i)) | 1 |
| Rear All direction indicators obviously incorrectly positioned incorrect spacing between lamps (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure centre stand (6.1.1 (b) (i)) | 1 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Roller brake test indicates a binding brake front brake binding slightly |3.3.A1a| | 1 |
| Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Lower Brake hose excessively twisted |3.2.B3a| | 1 |
| Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake effort inadequate at a wheel |Excessive Travel| |1.2.1 |a| |i|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel needs adjustment (1.2.1 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Handlebar deformed handle bar boss/bars bent |2.1.1b| | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |
| Front 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 |
| Front Horn not working |1.7.3a| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Rear Brake cable has restricted free movement (1.1.15 (e)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure mudguard (6.1.1 (b) (i)) | 1 |
| Exhaust silencer insecure exhaust cover (8.1.1 (b) (i)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected REAR NUT AND SPACER IS MISSING (5.2.1 (c) (ii)) | 1 |
| Front Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Front Brake component insecure |1.1.21 |c|| | 1 |
| Horn control defective Horn not working when pressing the horn button |1.7.2a| | 1 |
| Offside Front Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Stop lamp not working rear brake control |4.3.1 |a| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride swing arm mount |6.2.1h| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Nearside Brake lever has inadequate reserve travel rear brake |3.1.3b| | 1 |
| Rear Stop lamp remains on when the brake is released control |1.3.1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| 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|| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Nearside Front 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 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Steering linkage ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Stop lamp switch with a delay in operation REAR BRAKE SWITCH (4.3.2 (a) (ii)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Offside Rear Motorcycle structure joining/attachment plate or fastening insecure rear shock mount plate bolt missing rhs (6.1.1 (b) (i)) | 1 |