| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 53 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 21 |
| Front Brake excessively binding (1.2.1 (f)) | 15 |
| 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 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Horn not working |1.7.3a| | 6 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| 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 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Registration plate issues | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| 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 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| 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 |
| Headlamp insecure (4.1.1 (c)) | 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 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (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 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 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Brake master cylinder leaking top banjo bolt loose fluid leaking .front (1.1.10 (b) (ii)) | 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 |
| Rear Wheel spindle loose rear wheel loose spindle nut loose (5.2.1 (c) (i)) | 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 |
| 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 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 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 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 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 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle twist grip not returning to tickover causing the bike to continue driving forwards when released. (6.2.7 (a) (ii)) | 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 |
| Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride swing arm mount |6.2.1h| | 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 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |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 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 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 |