| Most common failures | No# failures |
|---|
| Registration plate issues | 13 |
| Headlamp aim out of alignment | 12 |
| Front Brake excessively binding (1.2.1 (f)) | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Stop lamp remains on when the brakes are released | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Registration plate lamp issues | 5 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Front Brake lever excessively corroded pivot dry (1.1.15 (b)) | 1 |
| Offside Front shock absorber seal failed and leaking oil Fork seal |2.3.3| | 1 |
| Motorcycle structure excessively distorted center stand hanging low and seized fouling floor when cornering |6.1.1a| | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake lining|s| less than 1.0 mm thick |1.1.13 |a|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Brake cable has restricted free movement |1.1.15 |e|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Central Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Brake has no recorded effort at a wheel 2nd control (1.2.1 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp rear brake stop lamp (4.4.3 (b)) | 1 |
| Brake lever pivot excessively worn rear brake lever (1.1.1 (b)) | 1 |
| Central Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake light switch |1.3.1a| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Stop lamp not working control (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect wrong position (4.1.2 (c)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake master cylinder defective but brake still operating front brake grabbing (1.1.10 (b) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure front screen (6.1.1 (b) (i)) | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Position lamp not working Both |4.2.1 |a|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake cable insecure (1.1.15 (c)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Offside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Central All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Lower Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Shock absorber has a serious fluid leak both fork seals need replacing (5.3.2 (b)) | 1 |
| Front Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies with front brake lever |right side| |1.3.1a| | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Nearside Rear Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Front Shock absorber has a serious fluid leak both sides (5.3.2 (b)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Rear Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Brake lever insecure Rear brake lever lock nut missing |3.1.2a| | 1 |
| Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake drum contaminated |1.1.14 |b|| | 1 |
| Rear Brake drum contaminated Rear brake keeps seizing |1.1.14 |b|| | 1 |
| Offside Position lamp not working (4.2.1 (a)) | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |