| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 30 |
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| Registration plate issues | 19 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Front wheel bearings are excessively rough |2.3.5b| | 9 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| 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| | 6 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Nearside Rear Direction indicator not working |1.5.1c| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Rear Footrest missing |6.2.1a| | 4 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| An item not tested |Manual| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear Drive chain excessively tight |6.2.1d| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Rear Exhaust has part of the system missing |7.1.1a| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 2 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Footrest insecure |6.2.1a| | 2 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Offside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Fuel system component insecure |7.2.1b| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Upper Exhaust has part of the system missing bolt missing |7.1.1a| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake lever so insecure that the brake cannot be readily applied |1.1.2 |e| |ii|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Offside Rear 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 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Centre Rear Gradient brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.D1b| | 1 |
| Horn missing |1.7.1| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Nearside Front Brake hose which buldges |3.2.B4| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front shock absorber seal failed and leaking oil Left and right fork seals leaking |2.3.3| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Brake component leaking fluid |3.2.B4| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Offside Front Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Wheel bearing rough when rotated Vibration felt through handlebars as wheel is turned (5.1.3 (b) (i)) | 1 |
| Nearside Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Offside Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars both directions |2.1.2b| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Steering control handlebar movement restricted by trapped cables throttle cable trapped between fork and radiator at full lock |2.1.2c| | 1 |
| Nearside Front Brake caliper|s| insecure sliding pin boot missing/deteriorated causing excessive play in caliper mounting |3.2.A1j| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear 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 chain rivet link not rivetted |6.2.1h| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Nearside Rear Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Registration plate lamp issues | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Central Rear Lower Suspension arm pin or bush excessively worn swingarm to lower shock mount bushing. (5.3.4 (a) (i)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected cable split and not retracting safely. (6.2.7 (a) (ii)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Offside Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Front Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Offside Front Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |