| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 38 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 28 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 18 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 15 |
| Drive chain excessively loose |6.2.1d| | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Front wheel bearings have excessive free play |2.3.5b| | 12 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 11 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Horn not working |1.7.3a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Registration plate issues | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Horn missing |1.7.1| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Brake pedal has inadequate reserve travel |fouls exhaust| |3.1.3b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| An item not tested |Manual| | 1 |
| Front Upper Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Handlebar restricted in free movement from lock to lock horn detached from mounting, restricting handle bar movement |2.1.4 |c|| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake linked system has a seized master cylinder pivot. |3.2.B5| | 1 |
| Offside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 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 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear reflector on sidecar missing |1.4.1| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Footrest insecure |6.2.12 |a|| | 1 |
| Offside Lower Exhaust has a major leak of exhaust gases exhaust blowing excessively |6.1.2 |a|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 1 |
| Rear Brake disc(s) is excessively distorted (3.2.A1m) | 1 |
| Rear wheel bearings have excessive free play (2.4.A.2c) | 1 |
| Steering movement excessively notchy with the wheel raised (2.2.1b) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.5.1) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Drive chain excessively loose (6.2.1d) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake component insecure torque reactionbracket (1.1.21 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Exhaust excessively deteriorated (7.1.1a) | 1 |
| Front position lamp does not illuminate immediately when switched on (1.1.3a) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Central Exhaust has a major leak of exhaust gases both sides font pipes intp back boxs (6.1.2 (a)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| 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)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied Pedal hitting exhaust (1.1.2 (d)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Offside Direction indicator not working lens damaged (4.4.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle grip is lose and freely spinning (6.2.7 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Central Rear Suspension arm ball joint excessively worn At bottom shocker bush (5.3.4 (a) (i)) | 1 |
| Stop lamp not working Lever switch (4.3.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied HITTING EXHAUST (1.1.2 (d)) | 1 |