| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 30 |
| Headlamp aim out of alignment | 30 |
| Steering headbearing has excessive free play |2.2.2| | 24 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 20 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 19 |
| Registration plate issues | 14 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 14 |
| Horn not working |1.7.3a| | 13 |
| Rear reflector on motorcycle obscured |1.4.1| | 11 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Front Steering headbearing has excessive free play |2.2.2| | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 2 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear reflector on motorcycle obscured |1.4.2b| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Front Headlamp aim not tested |4.1.2 |b|| | 2 |
| Rear Lower Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 2 |
| 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| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure Side Stand insecure (dangerous) (6.1.1 (b) (i)) | 1 |
| Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Brake lever excessively worn |1.1.15 |b|| | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced Centre stand insecure. |6.1.1 |b| |ii|| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticking |6.2.7 |a| |ii|| | 1 |
| Exhaust system insecure heat shield broken away from exhaust |6.1.2 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Centre Rear Drive belt worn to excess |6.2.1e| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Rear reflector likely to become detached |4.8.1 |b| |ii|| | 1 |
| Offside Front Rear reflector likely to become detached |4.8.1 |b| |ii|| | 1 |
| Nearside Front All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Offside Front All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort front brake operation very jerky |3.3.A1c| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Handlebar restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Brake lever cracked |3.1.2c| | 1 |
| Nearside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Throttle operating incorrectly insecure |6.2.1f| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| An item not tested |Manual| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Rear 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 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Headlamp switch faulty |1.2.4| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Headlamp at least one does not illuminate on dipped beam affected by the reving of the engine |1.2.2a|i|| | 1 |
| Position lamp not working Front and rear. |4.2.1 |a|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Registration plate lamp issues | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected headstock bearings have excessive play (2.2.2 (f) (ii)) | 1 |
| Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Direction indicators flashing less than 60 times a minute all |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Upper Rear suspension bush has excessive free play swing arm bush |2.4.A2a|i|| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Central Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Nearside Motorcycle structure is fractured and structural rigidity is significantly reduced |6.1.1 |a| |i|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear An item not tested |Manual| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Offside Brake lever insecure nut missing (1.1.2 (e) (i)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Stop lamp not working from front brake control |4.3.1 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Upper Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking Nose fairing |6.1.1c| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Stop lamp not working not working from rear brake (4.3.1 (a) (ii)) | 1 |
| Steering linkage insecure to the extent there is excessive movement at the mountings head bearing essive play (2.1.3 (a) (ii)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride offside pillion peg pivot split pin missing |6.2.1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride rear brake lever pivot bolt lock nut missing |6.2.1h| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking rear mud guard loose |6.1.1c| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake hose damaged | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |