| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 30 |
| Registration plate issues | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Horn not working |1.7.3a| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Registration plate lamp issues | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 3 |
| Horn not working (7.7 (a)) | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Horn missing |1.7.1| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 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 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Exhaust has a major leak of exhaust gases Front exhaust stud broken (6.1.2 (a)) | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Footrest missing |6.2.1a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Brake cylinder operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Fuel system component leaking tap leaking |6.1.3 |b| |i|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Centre Front Lower Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Centre Rear Lower Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Suspension component modified so the suspension is inoperative due to exhaust fouling swinging arm under compression (5.3.3 (c) (ii)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Brake cylinder insecure master cylinder (1.1.16 (c) (i)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Handlebar handgrip missing |2.1.1c| | 1 |
| Stop lamp not working when rear brake applied (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Fuel cap sealing washer deteriorated outer seal |7.2.2c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Rear reflector on motorcycle missing (1.4.1) | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Central Front Brake excessively binding (1.2.1 (f)) | 1 |
| Central Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Headlamp insecure (1.2.3b) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp not working from both brakes (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Fork yoke fractured (2.2.2 (d) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Stop lamp does not illuminate immediately a brake applies front and rear |1.3.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Brake pedal attachment screws loose rear clevis pin missing |3.1.2b| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Centre Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |