| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 9 |
| Registration plate issues | 9 |
| Registration plate lamp issues | 8 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Rear Footrest missing |6.2.1a| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| 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 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Indicator tell tale not operating correctly |1.5.2| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator obscured |1.5.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Drive chain sprocket excessively loose sprocket nuts all loose |6.1.7 |c| |i|| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Drive chain excessively tight |6.2.1d| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| An item not tested |Manual| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front 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 |
| Nearside Lower Steering lock stop missing |2.1.3| | 1 |
| Lower Drive chain excessively tight |6.2.1d| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Centre Fuel system component leaking |7.2.1a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Centre Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Lower Brake locking device missing |3.2.A1e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Footrest missing |6.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp indicator operates when o/s indicators are in use |1.5.1c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Drive chain sprocket worn to excess (6.2.1e) | 1 |
| Nearside Rear Direction indicator not working (1.5.1c) | 1 |
| Nearside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Offside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Nearside Brake disc(s) friction surface contaminated by oil or grease (3.2.A1k) | 1 |
| Offside Brake disc(s) friction surface contaminated by oil or grease (3.2.A1k) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Lower Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 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 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Throttle operating incorrectly tick over high rpm (6.2.7 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |