| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Drive chain excessively loose |6.2.1d| | 10 |
| Nearside Handlebar deformed |2.1.1b| | 8 |
| Horn not working |1.7.3a| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Offside Handlebar deformed |2.1.1b| | 5 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 5 |
| Rear reflector on motorcycle obscured |1.4.1| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 3 |
| Registration plate issues | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 3 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 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| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Offside Headlamp insecure |1.2.3b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Offside Front Footrest insecure |6.2.12 |a|| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Seat insecure |6.2.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Horn not working (7.7 (a)) | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Registration plate lamp issues | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear Seat insecure |6.2.1a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Upper Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Braking system does not have an approriate system/s fitted according to its age |3.1.1| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Offside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Nearside Headlamp insecure |4.1.1 |c|| | 1 |
| Direction indicator not working All |1.5.1c| | 1 |
| Footrest missing Both rear |6.2.1a| | 1 |
| Throttle operating incorrectly Sticks |6.2.1f| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Drive chain worn to excess seized |6.1.7 |c| |i|| | 1 |
| Drive chain sprocket excessively loose catching swing arm |6.1.7 |c| |i|| | 1 |
| Front Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Handlebar grip insecure to handlebar throttle |2.2.1 |d| |ii|| | 1 |
| Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Rear Brake component inadequately mounted |1.1.21 |c|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Headlamp insecure |1.2.3b| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride spring link in incorrect direction |6.2.1h| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Upper Front suspension assembly component missing |2.3.1| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm bush/bearing (5.3.4 (a) (i)) | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake pedal insecure |1.1.2 |e| |i|| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning |4.4.1 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride split pin |6.2.1h| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride sprocket |6.2.1h| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies control one |1.3.1a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear wheel spindle securing nut locking device missing both nuts |2.4.A.2b| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear Rear suspension bearing has excessive free play movement to lower shock mount |2.4.A2a|i|| | 1 |
| Drive chain fouling another component rubbing on side stand |6.2.1d| | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| An item not tested |Manual| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted wrong direction (6.1.7 (j) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Brake lever excessively corroded |3.2.A1c| | 1 |
| Brake pipe likely to be fouled or trapped by moving parts Steering lock to lock |3.2.B2c| | 1 |
| Brake hose excessively kinked front brake reservoir hose |3.2.B3a| | 1 |