| Most common failures | No# failures |
|---|
| Registration plate issues | 74 |
| Headlamp aim out of alignment | 20 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 10 |
| 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| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| 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| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front 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 Position lamp not working (4.2.1 (a)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Lower Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Rear Brake rod excessively chafed |3.2.A1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle control sticking |6.2.7 |a| |ii|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected headbearings excessively notchy |2.2.2 |f| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork leg oil seal leaking |5.3.2 |b|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Wheel more than one fixing loose (5.2.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 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 |
| Seat insecure |6.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies the foot pedle |1.3.1a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Handlebar so insecure it is likely to become detached Re torqued |2.2.1 |b| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake hose leaking (1.1.12 (c)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |