| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 33 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Rear reflector missing (4.8.2 (a) (ii)) | 16 |
| Stop lamp remains on when the brakes are released | 16 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Riders seat insecure |6.2.1a| | 8 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 8 |
| Rear reflector missing |4.8.2 |a| |ii|| | 8 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 7 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 7 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 6 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| 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)) | 5 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| All direction indicators not working (4.4.1 (a) (ii)) | 4 |
| Rear position lamp incorrect colour |1.1.2b| | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Horn not working |1.7.3a| | 4 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Registration plate issues | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Horn not working (7.7 (a)) | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 2 |
| Position lamp not working |4.2.1 |a|| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Registration plate lamp issues | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock No R/H lock stop (2.1.4 (b)) | 1 |
| Steering headbearing has excessive wear or free play Very loose (2.2.2 (f) (i)) | 1 |
| Rear Brake lever has insufficient reserve travel Needs adjusting (1.1.2 (a)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected notchy/too tight (2.2.2 (f) (ii)) | 1 |
| Vehicle identification number not legible (0.2 (b)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on when on dipped beam |1.1.3a| | 1 |
| Stop lamp not working front control (4.3.1 (a) (ii)) | 1 |
| Front Position lamp not working not working on low beam (4.2.1 (a)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected STEERING BEARINGS NOTCHY |2.2.2 |f| |ii|| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected covers loose (6.2.7 (a) (ii)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Riders seat insecure front fixing broken |6.2.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Front Upper Exhaust silencer likely to become detached Manifold nut and stud missing (8.1.1 (b) (ii)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear All direction indicators obviously incorrectly positioned Backwards (4.4.3 (a)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Brake component insecure (Front brake hose) (1.1.21 (c)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front All position lamps not working low beam (4.2.1 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Direction indicator incorrect colour amber lens fallen off inside indicator |1.5.1b| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies stop switch |1.3.1a| | 1 |
| Stop lamp not working Both front and back. (4.3.1 (a) (ii)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Position lamp showing white light to the rear Broken lens. |4.2.3 |a| |ii|| | 1 |
| Stop lamp showing white light to the rear Broken lens. |4.3.3 |a| |ii|| | 1 |
| Front Stop lamp not working brake (4.3.1 (a) (ii)) | 1 |
| Front Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel REAR BRAKE CABLE SNAPPED WHILST TESTING REAR BRAKE ON ROLLER BRAKE TEST (1.2.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Handlebar deformed to the extent that steering is affected not in alignment with front forks (2.2.1 (c) (ii)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Direction indicator not working Both (4.4.1 (a) (ii)) | 1 |
| Offside Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Offside Rear Lower 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 |
| Offside Rear 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 |
| Offside Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Central Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Central Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Stop lamp remains on when the brake is released front control |1.3.1e| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel has a loose wheel stud|s| |4.2.3a| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Nearside Front Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Fuel system component leaking carburetor float bowl |7.2.1a| | 1 |
| Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Steering linkage locking device ineffective |2.1.3 |d|| | 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 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp both |1.1.3b| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Riders seat insecure Doesnt lock down. |6.2.5 |a| |ii|| | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering R/h steering stop not operating . |6.1.1 |a| |ii|| | 1 |
| Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Exhaust silencer insecure |8.1.1 |b| |i|| | 1 |
| Central Front Fairings insecure and likely to impede the steering fairing fastend while work carrid out befor test |2.1.2e| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Steering linkage locking device missing |2.1.3 |d|| | 1 |
| Front Brake hose damaged and likely to fail |1.1.12 |a|| | 1 |
| Front Brake lever pivot has excessive free play |1.1.1 |b|| | 1 |
| Front Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Rear Exhaust system insecure |6.1.2 |a|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Steering lock stop missing rh lock stop missing |2.1.3| | 1 |
| Offside Front Stop lamp switch with a delay in operation front brake light switch defective (4.3.2 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition needs repacking (8.1.1 (a)) | 1 |
| Rear Suspension rod damaged and seriously weakened bent (5.3.3 (b) (i)) | 1 |
| Stop lamp lens defective such that the emitted light is adversely affected (4.3.1 (b) (ii)) | 1 |
| Steering headbearing has excessive wear or free play play in head bearings (2.2.2 (f) (i)) | 1 |
| Nearside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Offside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| All direction indicators adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Offside Front Steering linkage locking device missing (2.1.3 (d)) | 1 |
| Front Motorcycle structure is so deformed it is likely to adversely affect braking or steering front forks bent and no lock stops either side |6.1.1 |a| |ii|| | 1 |
| All direction indicators not working no indicators (4.4.1 (a) (ii)) | 1 |
| Stop lamp showing white light to the rear needs new rear lense (4.3.3 (a) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases exhaust cracked on header pipe (6.1.2 (a)) | 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 |
| Steering headbearing in such a condition that steering control is adversely affected forks bent back |2.2.2 |f| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Handlebar grip insecure to handlebar both |2.2.1 |d| |ii|| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Rear Stop lamp lens defective such that the emitted light is adversely affected requires new battery or charge |4.3.1 |b| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Headlamp aim not tested no beam pattern to test |1.6| | 1 |