| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Brake hose damaged | 7 |
| Registration plate lamp issues | 6 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Registration plate issues | 5 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Brake hose excessively deteriorated | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear Brake lever insecure |3.1.2a| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Horn not working |1.7.3a| | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front mudguard insecure |2.3.7| | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Front Riders seat insecure |6.2.1a| | 2 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Exhaust has a major leak of exhaust gases manifold (6.1.2 (a)) | 1 |
| Rear Exhaust silencer likely to become detached box (8.1.1 (b) (ii)) | 1 |
| Front Exhaust silencer likely to become detached pipe (8.1.1 (b) (ii)) | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Rear Brake cable guide defective and affecting operation (1.1.15 (d)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Nearside Front Motorcycle structure excessively damaged steering stop missing |6.1.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Stop lamp not working from rear brake (4.3.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Rear Lower Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Rear Lower Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure Front mudguard insecure (6.1.1 (b) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fuel cap missing (6.1.3 (b) (i)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle housing insecure. |6.2.7 |a| |ii|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on (1.1.3a) | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Centre Exhaust mounting missing support bolt missing (7.1.1c) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake excessively binding brake sticks on. (1.2.1 (f)) | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Steering operation impeded by a fairing steering stops maladjusted. (2.1.4 (e)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Central Front Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake hose excessively damaged cord layer exposed due to wear against bracket (1.1.12 (b) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking mudguard insecure |6.1.1c| | 1 |
| Front Motorcycle structure cracked Fairing insecure |6.1.1a| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Fuel cap ineffective Seal missing (6.1.3 (b) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking mud guard insecure |6.1.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear wheel rotation likely to be impeded rear fender /splash guard |6.2.1b| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Central Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Front Upper Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 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 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 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 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |