| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 38 |
| Rear reflector on motorcycle missing |1.4.1| | 31 |
| Registration plate issues | 27 |
| Rear reflector missing (4.8.2 (a) (ii)) | 18 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Registration plate lamp issues | 7 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| 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| | 4 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Front Stop lamp not working front brake light switch not working. |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls front brake switch not operating. (4.3.2 (a) (iii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Headlamp insecure bulb and reflector not fitted correctly (4.1.1 (c)) | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Central Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied Front Brake Lever Sharp and Short |1.1.2 |d|| | 1 |
| Front Stop lamp switch with a delay in operation brake switch (4.3.2 (a) (ii)) | 1 |
| Offside Front Stop lamp switch with a delay in operation brake switch |4.3.2 |a| |ii|| | 1 |
| Rear Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort 25kg Noticeable During road test. (1.2.1 (e)) | 1 |
| Exhaust has part of the system missing silencer/exhaust clamp missing |7.1.1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 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 |
| Stop lamp does not illuminate immediately a brake applies rear switch |1.3.1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Direction indicators flashing more than 120 times per minute all |1.5.1c| | 1 |
| Nearside Front Handlebar grip insecure to handlebar handlebar grip insecure (some looseness indicated) (2.2.1 (d) (ii)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake disc significantly and obviously worn Worn below service limit (1.1.14 (a) (i)) | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Lower Brake component modification adversely affecting braking performance Calliper not sliding smoothly will not lock |1.1.21 |d| |ii|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies front |1.3.1a| | 1 |
| Brake disc|s| excessively worn both front |3.2.A1l| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear 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 headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level |1.1.10 |d| |ii|| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Direction indicators affected by the operation of another lamp with stop lamp |1.5.1c| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Stop lamp not working does not work when front brake is operated (4.3.1 (a) (ii)) | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies foot brake |1.3.1a| | 1 |
| Stop lamp not working when rear brake is applied! |4.3.1 |a| |ii|| | 1 |
| Drive chain excessively loose so loose it is rubbing the gear lever! |6.1.7 |c| |i|| | 1 |
| Offside Footrest insecure the retaining locking pin is missing! |6.2.12 |a|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Rear Brake hose excessively twisted trapped between caliper carrier & swing arm! |1.1.12 |b| |ii|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Footrest insecure mounting bracket cracked |6.2.1a| | 1 |
| Front Headlamp aim not tested l.e.d. bulb not working as standard bulb (4.1.2 (b)) | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Direction indicators not working (1.5.1c) | 1 |
| Stop lamp does not emit a steady light Front brake switch faulty (1.3.1b) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear wheel bearings have excessive free play worn to excess |2.4.A.2c| | 1 |
| Drive chain excessively loose badly tensioned ie to loose + chain is worn |6.2.1d| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Direction indicator incorrect colour |1.5.1b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |