| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Headlamp aim beam image kick up to the offside |1.6| | 19 |
| Horn not working |1.7.3a| | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Registration plate issues | 9 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 9 |
| Registration plate lamp issues | 8 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| 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| | 5 |
| Horn not working (7.7 (a)) | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Stop lamp remains on when the brakes are released | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Exhaust has part of the system missing |7.1.1a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake lever cracked |3.1.2c| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Inner Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Inner Rear Lower Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Footrest insecure locking clip missing (6.2.12 (a)) | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp aim beam image kick up to the offside beam bender fitted |1.6| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Headlamp aim beam image kick up to the offside headlight converter fitted |1.6| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear reflector on motorcycle missing reflector |1.4.1| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Direction indicator with a multiple light source more than 1/2 not functioning |4.4.1 |a| |ii|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Front suspension has excessive corrosion which reduces the strength of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Nearside Front Handlebar mounting clamp loose handlebar clamp broken |2.1.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Handlebar deformed handlebar bent and switch gear touching tank on left lock |2.1.1b| | 1 |
| Nearside Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Offside Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Offside Front Handlebar fractured to the extent that detachment is likely |2.2.1 |c| |ii|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Nearside Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Lower Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| An item not tested |Manual| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 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 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls handle bar bent |2.1.2b| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Front Footrest insecure |6.2.12 |a|| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering oxford system in the way of full lock |2.1.2a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |