| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 83 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 34 |
| Drive chain excessively loose |6.2.1d| | 34 |
| Horn not working |1.7.3a| | 31 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 28 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 24 |
| Registration plate issues | 16 |
| Front Brake excessively binding (1.2.1 (f)) | 16 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Horn not working (7.7 (a)) | 13 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 10 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 10 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 10 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 10 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 9 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 9 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 9 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Drive chain worn to excess |6.2.1e| | 8 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Rear Brake excessively binding (1.2.1 (f)) | 7 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 6 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 5 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Front Brake disc|s| cracked |3.2.A1g| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear Brake excessively binding |1.2.1 |f|| | 3 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Brake pedal insecure |3.1.2a| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 3 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front An item not tested |Manual| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| 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|| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 2 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Brake pedal attachment screws loose |3.1.2b| | 2 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 2 |
| Nearside Footrest insecure |6.2.1a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake pedal insecure |3.1.2a| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Fuel tank leaking |7.2.1a| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 2 |