| Most common failures | No# failures |
|---|
| Registration plate issues | 44 |
| Rear reflector missing (4.8.2 (a) (ii)) | 25 |
| Rear reflector missing |4.8.2 |a| |ii|| | 19 |
| Headlamp aim out of alignment | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 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|| | 4 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| 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)) | 4 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Registration plate lamp issues | 4 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 3 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Drive chain worn to excess Has an extreme tight spot |6.1.7 |c| |i|| | 1 |
| 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 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Position lamp lens seriously defective |4.2.1 |b|| | 1 |
| Offside Front Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Offside Rear Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Central Rear Upper Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake master cylinder defective but brake still operating |1.1.10 |b| |i|| | 1 |
| Rear Suspension component pin or bush excessively worn linkage bushes |5.3.4 |a| |i|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake disc contaminated |1.1.14 |b|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Rear Direction indicator obviously incorrectly positioned Mandatory direction indicators must have minimum separation distances between the illuminating surfaces of:
solo motorcycles - 240mm at the front and 180mm at the rear (4.4.3 (a)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Offside Front Upper Brake cylinder operating mechanism has excessive travel Master cylinder required bleeding. (1.1.16 (e) (i)) | 1 |
| Rear Stop lamp not working From Rear Stop switch (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Direction indicator obviously incorrectly positioned integrated into tail light (4.4.3 (a)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp indicator turn off tail lamp (4.2.3 (b)) | 1 |
| Offside Rear Position lamp adversely affected by the operation of another lamp indicator turns off tail lamp (4.2.3 (b)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition VERY loud (8.1.1 (a)) | 1 |
| Rear Stop lamp not working does not illuminate when rear brake applied (4.3.1 (a) (ii)) | 1 |
| Front Brake grabbing severely high spots on front discs - wheel looks to have been recently painted - paint needs removed from both front disc mounting points as this will be causing discs to sit unevenly on wheel (1.2.1 (c)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling wheel not seated correctly - too far to right as sat on bike - causing both front brake discs to almost rub on right sides of calipers ( inside ) and front mudguard on right side (2.4 (a)) | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal leaking (5.3.2 (b)) | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Central Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front All direction indicators not working both front indicators inop (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear brake (4.3.2 (a) (iii)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp Indicators integrated in the tail lights (4.2.3 (b)) | 1 |
| Rear Brake master cylinder reservoir cap missing (1.1.10 (e)) | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Exhaust markings indicating not for road use or similar wording for race use only (6.1.2 (c)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced seat bolt missing |6.1.1 |b| |ii|| | 1 |
| Central Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Nearside Rear Footrest missing Pillion seat fitted (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing Pillion seat fitted (6.2.12 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Brake performance unable to be tested Rear pad fitment (1.2.1 (g)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |