| Most common failures | No# failures |
|---|
| Registration plate issues | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Headlamp aim out of alignment | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 5 |
| Horn not working |1.7.3a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Position lamp light intensity significantly reduced |4.2.3 |a| |ii|| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 2 |
| Direction indicator not working n/s front and rear (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Position lamp adversely affected by the operation of another lamp rear light dim when headlamp switched on low beam>not affected on high beam (4.2.3 (b)) | 1 |
| Stop lamp does not illuminate immediately a brake applies front lever |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear lever |1.3.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on Very dim |1.1.3a| | 1 |
| Front shock absorber seal failed and leaking oil L/H fork seal |2.3.3| | 1 |
| Front Brake lever has inadequate reserve travel Lever hitting throttle - when pulled in |3.1.3b| | 1 |
| Throttle operating incorrectly Throttle loose on handlebars |6.2.1f| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle control mounting insecure (6.2.7 (a) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| All direction indicators not working Not constant operation (4.4.1 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Steering damper ineffective both forks inoperative
n/side leaking |2.1.4 |d| |i|| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on Not working |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Not working on rear brake |1.3.1a| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Registration plate lamp issues | 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 indicates excessive fluctuation of brake effort front brake lever pulsing as brake is applied |1.2.1 |e|| | 1 |
| Offside Shock absorber has a serious fluid leak both fork seals leaking and run down onto wheel and disc |5.3.2 |b|| | 1 |
| Stop lamp does not illuminate immediately a brake applies when front brake is applied |1.3.1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Indicator tell tale not operating correctly |1.5.2| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Shock absorber has a serious fluid leak Both seals (5.3.2 (b)) | 1 |
| Rear Valve stem seriously damaged Split (5.2.3 (j)) | 1 |
| Rear Stop lamp not working Brake light switch |4.3.1 |a| |ii|| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies brake lever |1.3.1a| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working from rear brake lever control 2 |4.3.1 |a| |ii|| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Stop lamp not working on front brake (4.3.1 (a) (ii)) | 1 |
| Exhaust is leaking and excessively noisey at downpipe |7.1.1b| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition needs repacking |7.1.2| | 1 |
| Horn not loud enough to be heard by another road user battery dead? |1.7.3a| | 1 |
| Stop lamp deteriorated and function impaired not a distinct difference to rear light when applied-wired wrong? |1.3.3a| | 1 |
| Stop lamp insecure rear lens and light insecure |1.3.3b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Front wheel spindle loose |2.3.5a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Rear Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |