| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 100 |
| Registration plate lamp issues | 36 |
| Rear reflector missing (4.8.2 (a) (ii)) | 31 |
| Registration plate issues | 28 |
| Rear reflector missing |4.8.2 |a| |ii|| | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Horn not working |7.7 |a| |ii|| | 7 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| 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)) | 5 |
| Horn not working (7.7 (a)) | 4 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 3 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 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 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 2 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Central Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Headlamp insecure Aftermarket headlight fitted however lower mount is not attached.On full compression Headlamp body impacts with mudguard which moves headlamp beam out of aim parameters. (4.1.1 (c)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Rear Direction indicator not working Corrosion on bulb holder |4.4.1 |a| |ii|| | 1 |
| Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Side stand loose |6.2.1h| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Rear Brake pedal anti-slip provision loose Pivot Bolt Loose (1.1.2 (c)) | 1 |
| Rear Direction indicator obviously incorrectly positioned too close less than 180mm |4.4.3 |a|| | 1 |
| Offside Front All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Headlamp aim not tested Dip and Main not functioning (4.1.2 (b)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throtle sticking on, adjusted (6.2.7 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Rear Brake lining|s| less than 1.0 mm thick |1.1.13 |a|| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned both (4.4.3 (a)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Headlamp not working on dipped beam tell tale lamp also not working |4.1.1 |a| |ii|| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn linkage has excessive up and down play (5.3.4 (a) (i)) | 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 |
| Stop lamp not working front lever operation (4.3.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Headlamp light source and lamp not compatible incorrect bulb fitted |4.1.4 |c|| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Direction indicator not working front left ind not working (4.4.1 (a) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced Side Stand locking nut missing (6.1.1 (b) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned to close together 100mm spec 180mm (4.4.3 (a)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front brake light inop (4.3.2 (a) (iii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Stop lamp not working And rear |4.3.1 |a| |ii|| | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Nearside Rear Lower Drive chain excessively tight, so that it is likely to fail very poor condition / very dry (6.1.7 (k) (ii)) | 1 |
| Horn not working wiring fault |1.7.3a| | 1 |
| Nearside Front Horn not working (7.7 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Direction indicator obviously incorrectly positioned Rear indicators too close together. |4.4.3 |a|| | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear 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 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Brake indicates excessive fluctuation of brake effort front discs warped |1.2.1 |e|| | 1 |
| Offside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort 47kgf (1.2.1 (e)) | 1 |
| Nearside Rear Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Rear Brake disc contaminated chain lube on disc (1.1.14 (b)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake fluid reservoir leaking hydraulic fluid from rear underside |3.2.B1e| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Brake fluid not visible |1.1.10 |d| |iii|| | 1 |
| Front Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |