| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 50 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Registration plate issues | 14 |
| Horn not working |1.7.3a| | 14 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Drive chain excessively loose |6.2.1d| | 14 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 9 |
| Drive chain excessively tight |6.2.1d| | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| 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| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Nearside Rear Footrest insecure |6.2.1a| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front position lamp incorrect colour |1.1.2a| | 3 |
| Rear mono-shock insecure |2.4.B.4| | 3 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Handlebar deformed |2.1.1b| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Horn not working |1.7.3a| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 2 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Position lamp not working both rear position lamps not illuminating on 1st setting of switch (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Headlamp light intensity severely reduced both headlamps fitted with led type bulbs, no beam image visible also dim and hazy on headlamp tester (4.1.4 (a)) | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Handlebar restricted in free movement from lock to lock wiring (2.1.4 (c)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake performance not tested DUE TO FOOT REST MISSING |3.3| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Central Front Inner Fuel system component insecure tank |7.2.1b| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Central Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Offside Front Upper Clutch lever positioned so it cannot be readily operated CLUTCH CABLE PULLING TIGHT |6.2.7 |b|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Centre Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 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 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Upper Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator obscured |1.5.1a| | 1 |
| Offside Rear Direction indicator obscured |1.5.1a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Stop lamp not working control 2 |4.3.1 |a| |ii|| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure luggage rack |6.1.1 |b| |i|| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| An item not tested |Manual| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Rear Direction indicator not working Bulb replaced (4.4.1 (a) (ii)) | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp remains on when the brake is released Stop lamp remains on constantly. |1.3.1e| | 1 |
| Exhaust excessively deteriorated Exhaust damaged and is insecure. |7.1.1a| | 1 |
| Central Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Central Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Built up wheel has a loose bolt/s main bolt |4.2.1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Upper Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Brake disc contaminated |1.1.14 |b|| | 1 |
| 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 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Drive chain excessively loose catching exhaust |6.1.7 |c| |i|| | 1 |
| Nearside Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Horn not working Horn not fitted when presented for test. substitute fitted for test. Removed after test completed. Motorcycle no longer to mot standard. (7.7 (a) (ii)) | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Offside Front Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Front Brake hose excessively stretched (1.1.12 (b) (ii)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Central Rear Rear mono-shock insecure rear shock mount broken |2.4.B.4| | 1 |
| Central Rear Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside 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 mono-shock pivot seized |2.4.B.4| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Exhaust silencer likely to become detached |8.1.1 |b| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies front B/L switch |1.3.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Steering operation restricted in free movement from lock to lock restricted by screen prop (2.1.4 (c)) | 1 |