| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Rear reflector on motorcycle missing |1.4.1| | 15 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Headlamp aim beam image kick up to the offside |1.6| | 9 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 9 |
| Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Nearside Rear Direction indicator not working |1.5.1c| | 6 |
| Registration plate issues | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 5 |
| Rear reflector on motorcycle obscured |1.4.1| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Rear position lamp insecure |1.1.1c| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 2 |
| 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| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Handlebar deformed |2.1.1b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Front Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Direction indicators flashing less than 60 times a minute with lights on |1.5.1c| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Brake hose fouling |3.2.B3b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Front Upper Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Direction indicators not working all 4 indicators fail to work |1.5.1c| | 1 |
| Brake locking device missing front brake caliper pad pin is missing the retaining R clip |3.2.A1e| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts hose traps when steering turned left,touches fairing bracket,which has partially crushed front brake hose |3.2.B2c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride drive chain clip link fitted incorrectly for direction of chain travel |6.2.1h| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| An item not tested |Manual| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Stop lamp remains on when the brake is released (1.3.1e) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear Drive chain excessively loose (6.2.1d) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d) | 1 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |