| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 20 |
| Rear reflector missing (4.8.2 (a) (ii)) | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Registration plate issues | 11 |
| Registration plate lamp issues | 11 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 11 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Stop lamp remains on when the brakes are released | 5 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Rear reflector on motorcycle obscured |1.4.2b| | 3 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 3 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 3 |
| Offside Rear Footrest missing (6.2.12 (a)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Nearside Handlebar deformed |2.1.1b| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| 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|| | 2 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 2 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 2 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Rear footrest locking device |6.2.1h| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Motorcycle structure cracked lhs mid faring damaged but not causing obstruction and taped so no sharp edge and secure |6.1.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Decelerometer brake test indicates a sticking brake |3.3.E1d| | 1 |
| Rear Decelerometer brake test indicates a sticking brake |3.3.E1d| | 1 |
| Decelerometer brake test no brake control achieves an efficiency of 30% |3.3.E1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake hose excessively stretched |1.1.12 |b| |ii|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride drive chain split link |6.2.1h| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear Suspension rod pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Offside Front Footrest insecure |6.2.12 |a|| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars bent |2.1.2b| | 1 |
| Nearside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Wheel alignment incorrect which adversely affects the handling on rear wheel adjustment |2.5.1| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Rear Upper Footrest missing passenger footrest broke |6.2.1a| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Lower Rear suspension bearing has excessive free play shock bush/bearing |2.4.A2a|i|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Brake clevis joint insecure |1.1.15 |c|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Nearside Front Footrest insecure Safety clip missing |6.2.12 |a|| | 1 |
| Rear Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Engine revs up when steering fully turns to left |6.2.7 |a| |ii|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Shock absorber has a serious fluid leak fork leg |5.3.2 |b|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Offside Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Offside Front Footrest missing |6.2.12 |a|| | 1 |
| Rear Rear reflector missing FITTED DURING TEST (4.8.2 (a) (ii)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Headlamp light intensity severely reduced Both on dip beam no pattern (4.1.4 (a)) | 1 |
| Stop lamp not working From front control (4.3.1 (a) (ii)) | 1 |
| Rear Brake caliper inadequately mounted bolts finger tight (1.1.16 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Offside Front Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Stop lamp not working Rear brake not working, Re-Connect connectors and checked all Ok. (4.3.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain excessively loose And has tight links (6.1.7 (c) (i)) | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Brake pedal pivot has excessive free play (1.1.1 (b)) | 1 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Riders seat insecure no locking plate (6.2.5 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Upper Motorcycle structure has a fracture which is likely to adversely affect braking or steering Footrest Mount (6.1.1 (a) (ii)) | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock Bar bent (2.1.4 (b)) | 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 Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 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 main beam (4.1.3 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel brake pedal touching exhaust so cannot be applied (1.1.2 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort brake disc warped (1.2.1 (e)) | 1 |
| Brake performance not tested rear brake not working (1.2.1 (g)) | 1 |
| Fuel cap ineffective no key (6.1.3 (b) (i)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Offside Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition Baffle missing. (8.1.1 (a)) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |