| Most common failures | No# failures |
|---|
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 17 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 8 |
| Registration plate issues | 7 |
| Headlamp aim out of alignment | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Riders seat insecure |6.2.1a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Headlamp aim not tested no dip (4.1.2 (b)) | 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 |
| Headlamp insecure |1.2.3b| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake excessively binding pads worn uneven |1.2.1 |f|| | 1 |
| Rear Brake excessively binding lever damaged |1.2.1 |f|| | 1 |
| Front Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Rear Brake component is severely distorted |3.1.5| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake drum|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Offside Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Offside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 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 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |