| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Registration plate issues | 18 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| 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| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Registration plate lamp issues | 2 |
| Rear wheel spindle loose |2.4.A.2b| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Stop lamp remains on when the brake is released stop light switch req adjustment |1.3.1e| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Exhaust excessively deteriorated insecure cover |7.1.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Stop lamp does not illuminate immediately a brake applies foot brake |1.3.1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Fuel system component insecure |7.2.1b| | 1 |
| Rear Brake drum|s| insecure |3.2.A1g| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 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 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Brake rod insecure |1.1.15 |c|| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Throttle operating incorrectly sticks open |6.2.1f| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake lever cannot be applied smoothly feels very notchy. |3.1.3d| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Outer Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Centre Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Centre Rear Horn not working |1.7.3a| | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Riders seat with a defective supporting structure rear mud gaurd |6.2.5 |a| |i|| | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| Rear Fairings insecure and likely to impede the steering mud guard insecure |2.1.2e| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake pivot has restricted free movement brake arm fouls on chassis (1.1.15 (e)) | 1 |
| Offside Front Brake disc significantly and obviously worn Min. Thickness is 5mm - Disc measures 4.1mm (1.1.14 (a) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure Seat/rear mudguard unit loose (6.1.1 (b) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Front Horn sound not in accordance with requirements sqeeky sound (7.7 (c)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Horn not working (7.7 (a)) | 1 |