| Most common failures | No# failures |
|---|
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 22 |
| Rear reflector on motorcycle missing |1.4.1| | 22 |
| Headlamp aim out of alignment | 18 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 16 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 15 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 14 |
| Steering headbearing has excessive free play |2.2.2| | 14 |
| Rear reflector on motorcycle obscured |1.4.1| | 12 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 10 |
| Horn not working |1.7.3a| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 6 |
| Riders seat insecure |6.2.1a| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Indicator switch defective |1.5.4| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Fuel system component leaking |7.2.1a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Registration plate issues | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear position lamp incorrect colour |1.1.2b| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Stop lamp emits other than a steady red light |1.3.1b| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Brake hose damaged | 2 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Brake lever attachment screws loose |3.1.2b| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Rear Brake lever mounting insecure |3.1.2a| | 2 |
| Rear reflector on motorcycle obscured |1.4.2b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Registration plate lamp issues | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake lever is inoperative |3.1.3c| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake lever attachment screws missing |3.1.2b| | 1 |
| Rear Rear position lamp incorrect colour |1.1.2b| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake cable has a significantly damaged outer casing. |3.2.A1b| | 1 |
| Brake hose excessively deteriorated | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering pulls when operating brake |2.4 |a|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Upper Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking Centre stand does not fold up securely. |6.1.1c| | 1 |
| Front Brake master cylinder severely damaged |3.2.B1b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Front position lamp missing |1.1.1a| | 1 |
| Rear position lamp damaged and function impaired showing white light |1.1.1b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking rear fender |6.1.1c| | 1 |
| Brake pipe inadequately supported rear brake cable |3.2.B2b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension has a modification which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Front Front wheel spindle loose |2.3.5a| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Brake lever insecure |3.1.2a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies both |1.3.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Headlamp switch faulty |1.2.4| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Motorcycle structure excessively damaged panel has sharpe edges |6.1.1a| | 1 |
| Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Direction indicator flashing more than 120 times per minute all |1.5.1c| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension has excessive corrosion which reduces the strength of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear position lamp deteriorated and function impaired lens incorrectly fitted showing white light |1.1.1b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. shockers not working |2.4.A.3b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil seal leaking |2.3.3| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies front control |1.3.1a| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Horn not working (1.7.3a) | 1 |
| Rear Rear wheel bearings have excessive free play (2.4.A.2c) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.A2b) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear shock absorber has inadequate damping effect. (2.4.A.3b) | 1 |
| Rear reflector on motorcycle obscured (1.4.1) | 1 |
| All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 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 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned Positioned in tail light (4.4.3 (a)) | 1 |
| Rear Position lamp light intensity significantly reduced Very dim even when revd (4.2.3 (a) (ii)) | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake lever insecure Main fixing/pivot bolt securing nut missing. (1.1.2 (e) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |