| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 66 |
| Rear reflector on motorcycle missing |1.4.1| | 18 |
| Registration plate issues | 14 |
| Horn not working |1.7.3a| | 12 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 7 |
| 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| | 7 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Registration plate lamp issues | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Nearside Rear reflector missing |1.5.1a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Stop lamp not working |1.2.1b| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Brake hose leaking fluid |3.2.B4| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Brakes imbalanced across an axle | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Riders seat insecure |6.2.1a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front 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 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 |
| Horn sound not in accordance with requirements too quiet |7.7 |c|| | 1 |
| Rear Suspension arm corroded and seriously weakened rusted away at front cross member |5.3.3 |b| |i|| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Central Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Wheel bearing has excessive play Side car |5.1.3 |a| |i|| | 1 |
| Position lamp not working Side car |4.2.1 |a|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Brake hose damaged | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Stop lamp obscured |1.3.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Central Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear reflector missing |1.5.1a| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Rear Brake hose exposed to excessive heat from reservoir to master cylinder. |3.6.B.4f| | 1 |
| front brake binding |3.7.B.1| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Front Driver`s seat insecure |6.2.A.1| | 1 |
| Front Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Front brake caliper securing device loose |3.5.1j| | 1 |
| Fuel cap/sealing device sealing washer torn |7.2.4c| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| An item not tested |Manual| | 1 |
| Gradient brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.D1b| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Offside Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Centre Front Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Rear Wheel bearing has excessive play wheel nut not tight |5.1.3 |a| |i|| | 1 |
| Nearside Footrest insecure |6.2.1a| | 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 wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front Headlamp insecure |1.7.3| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Brake performance not tested |3.7.A.1| | 1 |
| Offside Rear Upper Suspension arm fractured |2.4.G.1| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Outer Front Brake component is fractured |3.1.5| | 1 |
| Rear Brake locking device missing split pin missing from torque arm |3.2.A1e| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp reflector seriously defective |4.1.1 |b| |ii|| | 1 |
| Stop lamp|s| all not working |4.3.1 |a| |iii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Nearside Rear Sub-frame is fractured and structural rigidity is significantly reduced swing arm to axel mounting fractured |6.1.1 |a| |i|| | 1 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Front Wheel has an excessively eccentric bead rim. flats in rim. |4.2.2| | 1 |
| Nearside Front Footrest insecure loose |6.2.1a| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Nearside Rear Shock absorber insecure |2.7.2b| | 1 |
| Offside Rear Shock absorber insecure |2.7.2b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside 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 |
| Front Shock absorber has a serious fluid leak Both (5.3.2 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Shock absorber has negligible damping effect forks (5.3.2 (b)) | 1 |
| Throttle operating incorrectly sticks (6.2.7 (a) (i)) | 1 |
| Front Brake master cylinder defective but brake still operating no free play (1.1.10 (b) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Position lamp switch does not illuminate all position lamps with a single operation (4.2.2 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Suspension arm pin or bush excessively worn side car (5.3.4 (a) (i)) | 1 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp affected by brake light (4.2.3 (b)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Fuel hose insecure (6.1.3 (a) (i)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Nearside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Rear Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Headlamp insecure Lamp lens insecure (4.1.1 (c)) | 1 |
| Offside Rear Motorcycle structure joining/attachment plate or fastening insecure Bolt missing fron sissy bar/ bracket (6.1.1 (b) (i)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition no silencers fitted (8.1.1 (a)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |