| Most common failures | No# failures |
|---|
| Registration plate issues | 40 |
| Rear reflector on motorcycle missing |1.4.1| | 37 |
| Headlamp aim out of alignment | 37 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 10 |
| Registration plate lamp issues | 10 |
| Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| 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| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Horn is not a constant note |1.7.3c| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 2 |
| Stop lamp remains on when the brakes are released | 1 |
| Front 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 |
| Horn missing |1.7.1| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Nearside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Brake component is severely distorted |3.1.5| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies When front brake is applied |1.3.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake pipe excessively corroded | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Brake disc|s| cracked |3.2.A1g| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Chain rivet link not secured |6.2.1h| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Central Front Horn control not functioning. |1.7.2b| | 1 |
| Central Front Horn not working |1.7.3a| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Drive chain so worn it is likely to fail broken link |6.1.7 |c| |ii|| | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Direction indicators affected by the operation of another lamp Indicators cannot be seen clearly when a brake is applied. |1.5.1c| | 1 |
| Brake locking device missing Rear brake pedal. |3.2.A1e| | 1 |
| Brake locking device missing Rear caliper pad pin. |3.2.A1e| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Stop lamp switch with a delay in operation adjusted |4.3.2 |a| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Headlamp light source and lamp not compatible hid conversion fitted (4.1.4 (c)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Offside Front Brake locking device insecure |3.2.A1e| | 1 |
| Offside Front Brake locking device missing |3.2.A1e| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Shock absorber has a serious fluid leak rear shock absorber (5.3.2 (b)) | 1 |
| Rear Lower Suspension arm pin or bush excessively worn bearings in tie bar between shock linkage and main frame (5.3.4 (a) (i)) | 1 |
| Nearside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Throttle operating incorrectly throttle sticks on when on rh lock |6.2.1f| | 1 |
| Offside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain adjuster bolt not secured to chain block |6.2.1h| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Rear Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator obscured |1.5.1a| | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Nearside Rear Footrest missing seized (6.2.12 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Steering operation impeded by a fairing horn impeding on front mudguard under braking. |2.1.4 |e|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 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 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Indicator switch insecure (1.4.A.1) | 1 |
| Horn not working (1.6.2a) | 1 |
| Direction indicators not working (1.4.A.2c) | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only (3.1.2) | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Upper Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Offside Rear Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |