| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Horn not working |1.7.3a| | 3 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Offside Rear Direction indicator likely to become detached indicator bracket corroded and fractures |4.4.1 |c| |ii|| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Rear Position lamp not working |4.2.1 |a|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Rear Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Offside Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Position lamp showing red light to the front |4.2.3 |a| |ii|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake hose excessively kinked |3.2.B3a| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension silencer |2.4.A.3a| | 1 |
| Rear position lamp insecure lens |1.1.1c| | 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 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking Kick start pedle |6.1.1c| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Brake hose excessively deteriorated | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |