| Most common failures | No# failures |
|---|
| Steering headbearing has excessive free play |2.2.2| | 29 |
| Headlamp aim out of alignment | 24 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 17 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Riders seat insecure |6.2.1a| | 8 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 7 |
| Brake hose damaged | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 5 |
| Nearside Front 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 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Brake lever mounting insecure |3.1.2a| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Brake hose excessively deteriorated | 4 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Rear Brake lever insecure |3.1.2a| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Upper Steering headbearing has excessive free play |2.2.2| | 2 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Brake performance not tested |3.3| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 2 |
| Stop lamp emits other than a steady red light |1.3.1b| | 2 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Registration plate issues | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| 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)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Rear Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 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 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Centre Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Centre Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Offside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on dip beam inop |1.1.3a| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Throttle operating incorrectly stiff in operation |6.2.1f| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 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 |
| Horn control not functioning. |1.7.2b| | 1 |
| Offside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Rear Brake lever insecure |3.1.2a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Throttle operating incorrectly insecure |6.2.1f| | 1 |
| Stop lamp not working rear brake lever switch |4.3.1 |a| |ii|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear suspension bush has excessive free play Engine mounts/suspension bushes excessively worn. |2.4.A2a|i|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Rear Lower Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Exhaust is leaking and excessively noisey rear silencer,, rusty |7.1.1b| | 1 |
| Rear shock absorber has inadequate damping effect. o/s and n/s rear |2.4.A.3b| | 1 |
| Nearside Brake lever has inadequate reserve travel rear brake |3.1.3b| | 1 |
| Offside Rear Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Nearside Rear Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Direction indicators flashing more than 120 times per minute Indicators Flashing to Fast. |1.5.1c| | 1 |
| Rear Rear wheel bearings have excessive free play Rough and Breaking up. |2.4.A.2c| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Nearside Rear Upper Brake lever has inadequate reserve travel Rear Brake Control has no reserve travel lever comes to the handle bar |3.1.3b| | 1 |
| Offside Rear Lower Exhaust mounting missing Exhaust Mounting N/S top Bolt is missing , Also Front Downpipe is missing one Nut |7.1.1c| | 1 |
| Centre Front Lower Exhaust is leaking and excessively noisey Exhaust is blowing at gasket under engine and has one mounting nut missing |7.1.1b| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Offside Front Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear suspension component misaligned |2.4.A.1a| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Front Throttle operating incorrectly throttle loose and moving on handlebar
|6.2.1f| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Exhaust has a major leak of exhaust gases Rear silencer corroded and leaking excessively. |6.1.2 |a|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort Rear drum shows excess fluctuation |1.2.1 |e|| | 1 |
| All position lamps not working front and rear |4.2.1 |a|| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Nearside Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear wheel spindle loose rear wheel has spacer missing |2.4.A.2b| | 1 |
| An item not tested |Manual| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Handlebar handgrip missing |2.1.1c| | 1 |
| Nearside Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Offside Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. both sides and bushes worn |2.4.A.3b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Exhaust silencer insecure |8.1.1 |b| |i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| All direction indicators not working Both offside and nearside indicators intermittent , tell tale also inoperative. |4.4.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam Headlamp goes off intermittently. |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam Main beam intermittent. |4.1.1 |a| |ii|| | 1 |
| Floor brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam when steering turned (4.1.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases manifold (6.1.2 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Shock absorber has negligible damping effect Seized (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak Both sides (5.3.2 (b)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Steering damper ineffective (2.1.4 (d) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |