| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Registration plate issues | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Upper Steering lock stop missing |2.1.3| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Suspension attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Brake master cylinder has a seized master cylinder pivot. |3.2.B5| | 1 |
| Centre Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Steering damper ineffective |2.1.2d| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Direction indicators flashing more than 120 times per minute both front |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute both rear |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Steering lock stop missing |2.1.3| | 1 |
| Nearside Front Brake hose excessively kinked hose damaged. |3.2.B3a| | 1 |
| Nearside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Brake disc|s| excessively worn excessive movement in floating disc. |3.2.A1l| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Footrest missing both rear |6.2.1a| | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Inner Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 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 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Offside Indicator switch insecure |1.5.4| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Stop lamp remains on when the brake is released (1.3.1e) | 1 |
| Front Brake fluid reservoir fluid level dangerously low (3.2.B1d) | 1 |
| Brake fluid reservoir leaking hydraulic fluid (3.2.B1e) | 1 |
| Front Roller brake test indicates a sticking brake (3.3.A1a) | 1 |
| Offside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Rear Roller brake test indicates a sticking brake (3.3.A1a) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |