| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 24 |
| Rear reflector on motorcycle missing |1.4.1| | 23 |
| Registration plate issues | 22 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Registration plate lamp issues | 7 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 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| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 3 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Steering linkage locking device ineffective |2.1.3 |d|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Brake pedal has insufficient reserve travel rear lever |1.1.2 |a|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected HOUSING BROKEN AND NOT HOLDING CABLE (6.2.7 (a) (ii)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake component insecure reservoir. (1.1.21 (c)) | 1 |
| All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| An item not tested |Manual| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Rear Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |