| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Rear reflector on motorcycle missing |1.4.1| | 18 |
| Registration plate issues | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Offside Handlebar deformed |2.1.1b| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Footrest missing |6.2.1a| | 2 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Nearside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| An item not tested |Manual| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Front An item not tested |Manual| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Drive chain horseshoe locking device likely to become detached |6.1.7 |j| |ii|| | 1 |
| Front Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Inner Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Outer Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Outer Direction indicator not working |1.5.1c| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Fairings insecure and likely to impede the steering Front fairing broken and insecure, headlamp moving. |2.1.2e| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Front suspension assembly component missing |2.3.1| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Engine bolts insecure /missing nuts |6.2.1h| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Front Lower Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Front Upper Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Direction indicator obscured |1.5.1a| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Offside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Nearside Rear Footrest insecure Securing clip missing |6.2.1a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Offside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Nearside Rear position lamp incorrect colour |1.1.2b| | 1 |
| Offside Rear position lamp incorrect colour |1.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Engine revs alter when steering is turned |6.2.7 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Footrest insecure front o/s |6.2.1a| | 1 |
| Centre Front Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 1 |
| Offside 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 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Front Lower Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Nearside Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls when front brake applied. (4.3.2 (a) (iii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Brake caliper inadequately mounted bolt loose (1.1.16 (c) (i)) | 1 |
| Rear Wheel spindle locking device missing split pin missing from castle nut (5.2.1 (d)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |