| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Front wheel bearings have excessive free play |2.3.5b| | 10 |
| Registration plate issues | 9 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Horn not working |1.7.3a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Stop lamp not working sticking front brake switch (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Handlebar grip insecure to handlebar left (2.2.1 (d) (ii)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| An item not tested |Manual| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Stop lamp not working FRONT BRAKE (4.3.1 (a) (ii)) | 1 |
| Nearside Front Horn not working wire refitted (7.7 (a) (ii)) | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Centre Front Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Offside Front Upper Stop lamp not working Front Brake Light Switch Missing New Fitted (4.3.1 (a) (ii)) | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp not working off the front lever |4.3.1 |a| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Stop lamp not working front lever switch |4.3.1 |a| |ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Brake hose excessively twisted |3.2.B3a| | 1 |
| 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| | 1 |
| Rear Brake lever has restricted free movement foot brake (1.1.15 (e)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Front Roller brake test indicates a binding brake 20kg brake bind from front |3.3.A1a| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Central Front Suspension component attachment bracket/mounting likely to fail (5.3.3 (b) (ii)) | 1 |
| Offside Front Brake lever pivot excessively tight (1.1.1 (a)) | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Upper Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake performance not tested binding (1.2.1 (g)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |