| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 44 |
| Registration plate issues | 24 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 22 |
| Headlamp aim out of alignment | 19 |
| Front wheel bearings have excessive free play |2.3.5b| | 15 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 14 |
| Drive chain excessively loose |6.2.1d| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 10 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Drive chain worn to excess |6.2.1e| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Front wheel bearings are excessively rough |2.3.5b| | 7 |
| Horn not working |1.7.3a| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 6 |
| Fuel cap sealing washer missing |7.2.2c| | 5 |
| Headlamp insecure |1.2.3b| | 5 |
| Offside Rear Direction indicators not working |1.5.1c| | 4 |
| Headlamp aim not tested |1.6| | 4 |
| Drive chain fouling another component |6.2.1d| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Offside Rear Direction indicator not working |1.5.1c| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 3 |
| Front position lamp incorrect colour |1.1.2a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Offside Rear Direction indicator insecure |1.5.3b| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Centre Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake pedal insecure |3.1.2a| | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Nearside Steering lock stop missing |2.1.3| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear 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 |
| Brake hose damaged | 2 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Front Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| An item not tested |Manual| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Front Horn missing |1.7.1| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Fuel system component leaking fuel cap |7.2.1a| | 1 |
| Nearside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front Handlebar handgrip missing |2.1.1c| | 1 |
| Centre Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Exhaust mounting missing |7.1.1c| | 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 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Steering lock stop ineffective On left hand lock. |2.1.3| | 1 |
| Direction indicator missing Both rear. |1.5.1a| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired not bright enough |1.2.3a| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride foot peg |6.2.1h| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Rear suspension bearing has excessive free play lower shock bearing |2.4.A2a|i|| | 1 |
| Rear suspension bearing has excessive free play bottom shock linkage |all| |2.4.A2a|i|| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Centre Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Centre Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Centre Front Steering lock stop maladjusted |2.1.3| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Rear Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Lower Rear suspension bearing has excessive free play linkage |2.4.A2a|i|| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Suspension arm pin or bush excessively worn swingarm (5.3.4 (a) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted Missing (6.1.7 (j) (i)) | 1 |
| Centre Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Centre Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Rear Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Centre Front Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Brake locking device insecure |3.2.A1e| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Direction indicator obscured |1.5.1a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Steering lock stop missing |2.1.3| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Front Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Direction indicator obscured |1.5.1a| | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn link (5.3.4 (a) (i)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Horn sound not in accordance with requirements bell fitted (7.7 (c)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Brake component leaking fluid Caliper |3.2.B4| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Fuel cap ineffective seal missing |6.1.3 |b| |i|| | 1 |
| Registration plate lamp issues | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp light intensity severely reduced both beams on at once |4.1.4 |a|| | 1 |
| Suspension component pin or bush excessively worn rear linkage |5.3.4 |a| |i|| | 1 |
| Central Rear Footrest missing foot pegs missing |6.2.12 |a|| | 1 |
| Nearside Rear Brake lining|s| contaminated very rusty pads |1.1.13 |b|| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Central Rear Rear reflector missing missing |4.8.2 |a| |ii|| | 1 |
| Central Front Headlamp not working on dipped beam dipped beam not working |4.1.1 |a| |ii|| | 1 |
| Nearside Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Lower Rear shock absorber insecurely mounted bush worn |2.4.A.3b| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Offside Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Steering lock stop missing in left lock hits fuel tank |2.1.3| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride spring link wrong way round on drive chain |6.2.1h| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts insecure |3.2.B2c| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Central Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Central Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Central Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Central Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear reflector missing Reflector added (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake fluid reservoir severely damaged |3.2.B1b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Headlamp aim not tested not working (4.1.2 (b)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 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 |
| Centre Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |