| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 67 |
| Registration plate issues | 53 |
| Rear reflector on motorcycle missing |1.4.1| | 46 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 13 |
| Registration plate lamp issues | 12 |
| Headlamp aim beam image kick up to the offside |1.6| | 12 |
| Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| 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| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Horn not working |1.7.3a| | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Front position lamp incorrect colour |1.1.2a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Exhaust excessively deteriorated hold + corroded |7.1.1a| | 2 |
| Rear 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 Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Horn not working (7.7 (a)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Brake caliper inadequately mounted and braking performance affected Rear calliper torque arm not attached (1.1.16 (c) (ii)) | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake disc significantly and obviously worn both front discs worn at bobbins - too much rotational movement |1.1.14 |a| |i|| | 1 |
| Offside Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Offside Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Offside Rear Inner Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Offside Front Brake disc contaminated |1.1.14 |b|| | 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 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Central Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Nearside Front Upper Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned Rear indicators not the required distance apart |4.4.3 |a|| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Front An item not tested |Manual| | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front not working (4.3.2 (a) (iii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak front fork seal (5.3.2 (b)) | 1 |
| Offside Front Brake disc contaminated contaminated with fork oil (1.1.14 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Stop lamp remains on when the brake is released When rear brake is applied |1.3.1e| | 1 |
| Stop lamp not working when applied from rear brake |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Sidecar rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake lever has inadequate reserve travel lever pulls back to bar with ease |3.1.3b| | 1 |
| Headlamp main beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Offside Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp not working Front (4.3.1 (a) (ii)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Stop lamp not working bulb (4.3.1 (a) (ii)) | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Brake fluid reservoir severely damaged |3.2.B1b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Nearside Front Front suspension assembly component loose |2.3.1| | 1 |
| Offside Front Front suspension assembly component loose |2.3.1| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front Brake indicates excessive fluctuation of brake effort 40 KGF (1.2.1 (e)) | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp not working Front and rear brake |4.3.1 |a| |ii|| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Rear Upper Exhaust silencer likely to become detached Broken off at Flange |8.1.1 |b| |ii|| | 1 |
| Brake component insecure rear anchor arm bolt not fastened (1.1.21 (c)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Stop lamp not working front stop switch inoperative (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake disc|s| excessively worn mounting bobbins worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn mounting bobbins worn |3.2.A1l| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |