| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 43 |
| Registration plate lamp issues | 25 |
| Registration plate issues | 24 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 20 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| 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| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Nearside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies front and rear brake lights innoperative |1.3.1a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Sidecar front position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Drive belt worn to excess |6.2.1e| | 1 |
| Drive belt fouling another component |6.2.1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Throttle operating incorrectly sticking |6.2.7 |a| |i|| | 1 |
| Drive belt so worn it is likely to fail teeth missing |6.1.7 |c| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Offside Drive belt excessively loose. |6.2.1d| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Horn not working |7.7 |a| |ii|| | 1 |
| Offside Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded will not slide on bracket |3.2.A1h| | 1 |
| Offside Front Upper Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Centre Front Horn is not a constant note |1.7.3c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Brake component insecure |1.1.21 |c|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake locking device missing Pad pin clip |3.2.A1e| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak nsf fork (5.3.2 (b)) | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Rear Brake caliper insecure missing rubber bush (1.1.16 (c) (i)) | 1 |
| Drive belt excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp switch with a delay in operation Front Switch Delay (4.3.2 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Lower Wheel more than one fixing loose rear wheel tensioners /alignment locking nuts loose - tightened as required (5.2.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Rear Brake disc significantly and obviously worn Rear disc warped (1.1.14 (a) (i)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Steering damper insecure (2.1.4 (d) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Rear All direction indicators light intensity significantly reduced When brake light is applied, indicator lights are almost not visible. (4.4.3 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Nearside Front Upper Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Central Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |