| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Offside Handlebar deformed |2.1.1b| | 7 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Registration plate issues | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Front Horn not working |1.7.3a| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front position lamp insecure |1.1.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 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 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 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 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level Broken |1.1.10 |d| |ii|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Nearside Rear Direction indicator obscured |1.5.1a| | 1 |
| Offside Rear Direction indicator obscured |1.5.1a| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Roller brake test indicates a severely juddering brake warped front disc |3.3.A1b| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Steering linkage component modified such that the steering is adversely affected steering locking up on right and left lock (2.1.3 (f) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen kick up on right hand side and high on both lamps (4.1.2 (a)) | 1 |
| Offside Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Centre Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Direction indicators not working front left |1.5.1c| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride fork snap rings missing |6.2.1h| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Roller brake test indicates a binding brake rear calliper seizing on |3.3.A1a| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam headlight not working on dip |1.2.2a|i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock ON LEFT LOCK |2.1.4 |b|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected |5.2.1 |c| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Exhaust system insecure |6.1.2 |a|| | 1 |
| Nearside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Stop lamp not working When handlebar lever applied |4.3.1 |a| |ii|| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Exhaust silencer insecure |8.1.1 |b| |i|| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front mudguard insecure |2.3.7| | 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 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |