| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 15 |
| Headlamp aim out of alignment | 14 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 9 |
| Riders seat insecure |6.2.1a| | 9 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Registration plate issues | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 4 |
| Brake hose damaged | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 3 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Horn not working |1.7.3a| | 3 |
| Steering lock stop ineffective |2.1.3| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Front 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 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Rear Brake grabbing severely (1.2.1 (c)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake cylinder severely damaged |3.2.B1b| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Nearside Front Brake lever has insufficient reserve travel REAR BRAKE LEVER HAS EXCESSIVE RESERVE TRAVEL (1.1.2 (a)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock NO LOCK STOP WHEN TURNED TO N/S OR O/S (2.1.4 (b)) | 1 |
| Central Front Headlamp lens missing |4.1.1 |b| |ii|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Brake lever insecure Rear brake lever |3.1.2a| | 1 |
| Indicator switch insecure All switch gear on the left |1.5.4| | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Central Front Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Brake lever cannot be released smoothly lub control cable |3.1.3d| | 1 |
| Front Steering operation impeded by a leg shield |2.1.4 |e|| | 1 |
| Front Brake hose bulging under pressure |1.1.12 |d|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Nearside Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride lock to lock on steering |6.2.1h| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Front position lamp missing not working |1.1.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Steering lock stop ineffective left hand |2.1.3| | 1 |
| Rear suspension bush has excessive free play engine mount, front. |2.4.A2a|i|| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Offside Rear Footrest insecure |6.2.12 |a|| | 1 |
| Rear Suspension component pin or bush excessively worn |engine mounts| |5.3.4 |a| |i|| | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake lever has inadequate reserve travel pulls back to bars and does not lock |3.1.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Exhaust silencer insecure |8.1.1 |b| |i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Fuel cap ineffective seal missing |6.1.3 |b| |i|| | 1 |
| Nearside Handlebar handgrip missing |2.1.1c| | 1 |
| Front Steering lock stop ineffective Left hand lock ineffective, Right hand lock stiff |2.1.3| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Position lamp not working both side light bulbs not working |4.2.1 |a|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Central Front Upper Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Direction indicators not working switch faulty |1.5.1c| | 1 |
| Nearside Steering linkage locking device ineffective fork stop.nearside ineffective |2.1.3 |d|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected notchy headrace bearings |2.2.2 |f| |ii|| | 1 |
| Direction indicators not working switch brocken |1.5.1c| | 1 |
| Front Position lamp not working 2 (4.2.1 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |