| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 55 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Horn not working |1.7.3a| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Registration plate issues | 6 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Fuel tank leaking |7.2.1a| | 4 |
| Front Horn not working |1.7.3a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake lever excessively corroded |3.2.A1c| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Outer Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Lower Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Forks in such a condition that steering control is adversely affected |2.2.2 |d| |ii|| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| All direction indicators missing all |4.4.1 |a| |ii|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Exhaust has a major leak of exhaust gases rear silencer loose on front pipe (6.1.2 (a)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake caliper leaking heavy leakage from caliper onto disk and pads (1.1.16 (b) (i)) | 1 |
| Rear Brake disc contaminated heavy contamination from caliper (1.1.14 (b)) | 1 |
| Rear Stop lamp not working brake light does not operate from either front or back controls (4.3.1 (a) (ii)) | 1 |
| Rear Motorcycle structure is deformed and structural rigidity is significantly reduced frame cut rear of seat over 70% diameter of frame likely to crack and fail needs welding asap. (6.1.1 (a) (i)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Nearside Front Brake hose fouling |3.2.B3b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Centre Front Motorcycle structure cracked |6.1.1a| | 1 |
| Centre Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake master cylinder severely damaged |3.2.B1b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Gradient brake test indicates a severely juddering brake |3.3.D1d| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Brake hose damaged | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Offside Front Shock absorber has a serious fluid leak Fork leg (5.3.2 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Rear Wheel alignment incorrect which adversely affects the handling wheel rubbing on swinging arm |2.4 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake hose excessively damaged |1.1.12 |b| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake lever excessively damaged |3.2.A1c| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| An item not tested |Manual| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Fuel tank leaking |7.2.1a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Brake master cylinder leaking REAR CAP SEAL |1.1.10 |b| |ii|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake lining|s| less than 1.5 mm thick Rear pads bellow legal requirement |3.2.A1f|i|| | 1 |
| Rear Wheel more than one fixing loose (5.2.1 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Upper Rear position lamp insecure |1.1.1c| | 1 |
| Centre Rear Upper Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Offside Front Fuel tank leaking |7.2.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Front Brake component is excessively corroded |3.1.5| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake component cracked and seriously reduced in strength Rear brake cam lever |3.2.A1| | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear shock absorber insecurely mounted top eye snapped |2.4.A.3b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |