| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 54 |
| Registration plate issues | 52 |
| Headlamp aim out of alignment | 29 |
| Horn not working |1.7.3a| | 17 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 12 |
| Drive chain excessively loose |6.2.1d| | 12 |
| Headlamp aim beam image kick up to the offside |1.6| | 9 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 8 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Registration plate lamp issues | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Nearside Front Footrest insecure |6.2.1a| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| 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)) | 3 |
| 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| | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Front Front mudguard insecure |2.3.7| | 2 |
| Offside 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 Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Stop lamp insecure |1.3.3b| | 2 |
| Rear position lamp insecure |1.1.1c| | 2 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear position lamp adversely affected by the operation of another lamp Both indicators |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected Notchy (2.2.2 (f) (ii)) | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Upper Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Stop lamp with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Brake lever mounting insecure Master cyl clamp missing |3.1.2a| | 1 |
| Front Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Offside Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Front An item not tested |Manual| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Horn missing |1.7.1| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 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 Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Central Exhaust mounting missing |7.1.1c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Nearside Front shock absorber leaking oil |9.2.7b| | 1 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Nearside Rear Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Rear Stop lamp obviously incorrectly positioned |1.2.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Chain guard insecure |6.2.1c| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Handlebar grip insecure to handlebar handlebar grip loose |2.2.1 |d| |ii|| | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 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 position lamp missing |1.1.1a| | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear All direction indicators obviously incorrectly positioned Indicators not spaced 180mm apart due to after market light unit fitted. (4.4.3 (a)) | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Rear Direction indicator obscured |1.5.1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |