| Most common failures | No# failures |
|---|
| Registration plate issues | 47 |
| Rear reflector on motorcycle missing |1.4.1| | 34 |
| Headlamp aim out of alignment | 28 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 13 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Front wheel bearings have excessive free play |2.3.5b| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Horn not working |1.7.3a| | 7 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 5 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear Wheel spoke excessively loose |4.2.1b| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Stop lamp remains on when the brakes are released | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake fluid contaminated (1.8 (a)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Registration plate lamp issues | 2 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Nearside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever is positioned so that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain split link incorrectly fitted |6.2.1h| | 1 |
| Nearside Headlamp insecure |1.2.3b| | 1 |
| Brake lever mounting cracked |3.1.2c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Vehicle identification number not displayed |0.2 |a|| | 1 |
| Vehicle identification number not legible |0.2 |b|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Brake hose excessively twisted |3.2.B3a| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Motorcycle structure is fractured and structural rigidity is significantly reduced behind right foot peg |6.1.1 |a| |i|| | 1 |
| Fuel hose insecure |6.1.3 |a| |i|| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Horn not working |1.7.3a| | 1 |
| Rear 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| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake hose damaged and likely to fail |1.1.12 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Horn control defective |1.7.2a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake disc fractured cracked around holes. (1.1.14 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Position lamp switch insecure (4.2.2 (b)) | 1 |
| Throttle operating incorrectly Engine revs increase on full right hand lock (6.2.7 (a) (i)) | 1 |
| Front Brake disc(s) friction surface contaminated by oil or grease (3.2.A1k) | 1 |
| Front Brake disc(s) has excessive run out (3.2.A1m) | 1 |
| Drive chain worn to excess (6.2.1e) | 1 |
| Front Drive chain sprocket worn to excess (6.2.1e) | 1 |
| Rear Drive chain sprocket worn to excess (6.2.1e) | 1 |
| Drive chain excessively loose (6.2.1d) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Handlebar grip missing (2.2.1 (d) (i)) | 1 |
| Offside Handlebar grip missing (2.2.1 (d) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen No visible cut off. (4.1.2 (a)) | 1 |
| Rear Wheel spoke missing (5.2.2 (d)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |