| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 46 |
| Registration plate issues | 41 |
| Headlamp aim out of alignment | 25 |
| Rear reflector missing |4.8.2 |a| |ii|| | 14 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| 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|| | 3 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 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 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Direction indicator missing |1.5.1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear suspension bush has excessive free play lower bushes | worse at bush in bottom of swing arm | |2.4.A2a|i|| | 1 |
| Brake pipe union leaking fluid union at master cylinder became loose during test and leaked brake fluid - tightened up to stop fluid leak |3.2.B4| | 1 |
| Steering headbearing has excessive wear or free play Adjustment |2.2.2 |f| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear reflector on motorcycle missing Rear Reflector fitted at Test Station. |1.4.1| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Front Horn not working broken earth wire! repaired |1.7.3a| | 1 |
| Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Wheel more than one fixing loose spindle |5.2.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Offside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Exhaust has part of the system missing baffle |7.1.1a| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp does not emit a steady light from rear pedal |1.3.1b| | 1 |
| Rear mono-shock pivot excessively worn bush in dog bone arm worn to excess |2.4.B.4| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear lever |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear control |1.3.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Brake cylinder insecure retighten bolts |1.1.16 |c| |i|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Rear Steering linkage locking device ineffective |2.1.3 |d|| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Front Shock absorber has a serious fluid leak Fork seal failed |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak Fork seal failed |5.3.2 |b|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Stop lamp remains on when the brake is released front brake lever not returning |1.3.1e| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 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 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Stop lamp switch with a delay in operation not working (4.3.2 (a) (ii)) | 1 |
| Nearside Rear Lower Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Lower Suspension attachment bracket/mounting insecure rear shock lower mount (5.3.3 (a) (i)) | 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 All direction indicators obviously incorrectly positioned Less than 180mm apart (integral) (4.4.3 (a)) | 1 |
| Front Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Rear Stop lamp not working brake light switch (4.3.1 (a) (ii)) | 1 |
| Rear Suspension attachment bracket/mounting insecure rear ride Hight adjuster was loose , tightened and test continued (5.3.3 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Nearside Rear Upper Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Upper Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Lower Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Rear Lower Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Front Steering operation restricted in free movement from lock to lock Front brake hose fouling steering damper. (2.1.4 (c)) | 1 |