| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 44 |
| Registration plate issues | 40 |
| Rear reflector missing |4.8.2 |a| |ii|| | 35 |
| Headlamp aim out of alignment | 23 |
| Registration plate lamp issues | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| 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)) | 8 |
| Horn not working (7.7 (a) (ii)) | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Horn not working |7.7 |a| |ii|| | 6 |
| 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|| | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 6 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Horn sound not in accordance with requirements |7.7 |c|| | 2 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Brake pedal pivot excessively tight (1.1.1 (a)) | 2 |
| Central Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Inner Direction indicator not working |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Suspension insecurely attached |5.3.3 |a| |i|| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Fuel cap ineffective lock was seized |6.1.3 |b| |i|| | 1 |
| Direction indicators affected by the operation of another lamp integrated lights interfering with each other |1.5.1c| | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Front Direction indicator obviously incorrectly positioned Too Close Together |4.4.3 |a|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 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 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp Rear light affected adversely by indicators |4.3.3 |b|| | 1 |
| Handlebar grip insecure to handlebar LH Grip loose |2.2.1 |d| |ii|| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator light intensity significantly reduced |4.4.3 |a|| | 1 |
| All direction indicators not working operation of hazard warning lights stops indicators working. |4.4.1 |a| |ii|| | 1 |
| Central Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Wheel fixing missing |multiple fixings| split pin missing |5.2.1 |a| |i|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Rear Wheel fixing missing |multiple fixings| split pin missing from spindle nut |5.2.1 |a| |i|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Nearside Rear Footrest insecure |6.2.12 |a|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Drive chain worn to excess dry, corroded, seized links and side play in the bearings |6.1.7 |c| |i|| | 1 |
| Front Stop lamp not working stop light comes on then off while brake applied |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator light intensity significantly reduced |4.4.3 |a|| | 1 |
| Rear All direction indicators obviously incorrectly positioned separation space below 180mm |4.4.3 |a|| | 1 |
| Stop lamp not working from front lever flickers on then goes off |4.3.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working right rear |4.4.1 |a| |ii|| | 1 |
| Front Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Front Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected |5.2.1 |c| |ii|| | 1 |
| Central Rear Upper Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Central Rear Upper Stop lamp not working Front brake switch faulty - replaced. |4.3.1 |a| |ii|| | 1 |
| Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Front Horn not working replaced (7.7 (a) (ii)) | 1 |
| Rear Rear reflector missing replaced (4.8.2 (a) (ii)) | 1 |
| Front All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Rear reflector on motorcycle incorrectly positioned (1.4.2d) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Offside Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp indicators (4.2.3 (b)) | 1 |
| Rear Lower Suspension arm pin or bush excessively worn front (5.3.4 (a) (i)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Brake fluid contaminated (1.8 (a)) | 1 |
| Nearside Front Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Offside Front Handlebar fouling on the fuel tank or bodywork on full lock seems to have been droped (2.1.4 (b)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Front Upper Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Valve stem seriously damaged Valve perished. (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged Valve perished. (5.2.3 (j)) | 1 |
| Throttle operating incorrectly Throttle opening on full RH lock (6.2.7 (a) (i)) | 1 |
| Nearside Front Upper Clutch lever positioned so it cannot be readily operated clutch lever loose, re positioned and tightened to secure (6.2.7 (b)) | 1 |
| Nearside Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Stop lamp not working switch (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling chain adjusters misaligning wheel too far to the left. (2.4 (a)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Direction indicator obviously incorrectly positioned insufficient separation to rear indicators (4.4.3 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned Rear indicators must be at least 180mm apart. (4.4.3 (a)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp At least half of stop lamp extinguished when direction indicators applied. (4.3.3 (b)) | 1 |
| Front Horn not working fit a new horn (7.7 (a) (ii)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front Stop lamp not working REPLACED SWITCH DURING TEST (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Horn not working Replaced horn (7.7 (a)) | 1 |
| Clutch lever positioned so it cannot be readily operated (6.2.7 (b)) | 1 |
| Direction indicator obviously incorrectly positioned Rears too close (4.4.3 (a)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Drive chain excessively loose chain too loose, adjusted - PRS. (6.1.7 (c) (i)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working brake lever inop. (4.3.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Brake component insecure ABS Sensor insecure. (1.1.21 (c)) | 1 |