| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 36 |
| Headlamp aim out of alignment | 22 |
| Registration plate issues | 21 |
| Front wheel bearings are excessively rough |2.3.5b| | 14 |
| Front wheel bearings have excessive free play |2.3.5b| | 9 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Registration plate lamp issues | 7 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Horn not working |1.7.3a| | 5 |
| Nearside Steering lock stop maladjusted |2.1.3| | 4 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Stop lamp remains on when the brakes are released | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| 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)) | 2 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock lock stop missing |2.1.4 |b|| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Handlebar handgrip missing |2.1.1c| | 1 |
| Offside Rear Exhaust mounting missing retaining spring missing |7.1.1c| | 1 |
| Steering lock stop maladjusted handle bar switch gear touching fuel tank |2.1.3| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Position lamp light intensity significantly reduced Dip be (4.2.3 (a) (ii)) | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Brake master cylinder severely damaged |3.2.B1b| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired Less than 50% working |1.5.3a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Brake pedal is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake pedal is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Brake pedal pivot has excessive free play |1.1.1 |b|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock Left lock (2.1.4 (b)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Rear Rear reflector reflecting white to the rear (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Rear Brake master cylinder defective but brake still operating |1.1.10 |b| |i|| | 1 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Rear Lower Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Roller brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |