| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 50 |
| Registration plate issues | 39 |
| Rear reflector on motorcycle missing |1.4.1| | 20 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Horn not working |1.7.3a| | 13 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Nearside Rear Direction indicator not working |1.5.1c| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| 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| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Rear Brake locking device missing |3.2.A1e| | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| An item not tested |Manual| | 2 |
| Registration plate lamp issues | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside 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 |
| Nearside 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 Front suspension assembly component missing |2.3.1| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Lower Brake pedal insecure clip missing |1.1.2 |e| |i|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Rear Rear reflector missing |1.5.1a| | 1 |
| Offside Rear Rear reflector missing |1.5.1a| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Lower Brake disc|s| cracked |3.2.A1g| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Stop lamp not working front lever |4.3.1 |a| |ii|| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Stop lamp affected by the operation of another lamp Stop lamp deteriorated and is not brighter than the pilot lamp |1.3.2| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies front |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear |1.3.1a| | 1 |
| Brake disc|s| excessively pitted front |3.2.A1l| | 1 |
| Roller brake test indicates a binding brake front |3.3.A1a| | 1 |
| Brake disc|s| excessively worn front |3.2.A1l| | 1 |
| Nearside Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside 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 |
| Offside 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 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Offside Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Brake hose connection leaking |1.1.12 |c|| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working bad connection |1.5.1c| | 1 |
| Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Upper Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Stop lamp does not illuminate immediately a brake applies from front brake lever. |1.3.1a| | 1 |
| Shock absorber has a serious fluid leak o/s/f fork seal |5.3.2 |b|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering operation restricted in free movement from lock to lock speedo cable fouling (2.1.4 (c)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Rear Lower Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam LUBRICATE SWITCH (4.1.3 (b)) | 1 |
| Stop lamp(s) not working on foot brake (4.3.1 (a) (ii)) | 1 |
| Stop lamp(s) emits other than a steady red light flashing when applied with front brake (4.3.3 (a) (ii)) | 1 |
| Offside Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases collectors disconnected on both banks (6.1.2 (a)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Brake rod insecure rear reactor bar (1.1.15 (c)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect DIP AND HIGH BEAM SWITCH IS REVERSED (4.1.2 (c)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |