| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 27 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Registration plate issues | 4 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Indicator tell tale not operating correctly |1.5.2| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Throttle operating incorrectly |6.2.1f| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake locking device missing Rear brake ankor bolt splitpin missing! |3.2.A1e| | 1 |
| Hydraulic brake control feels spongy no reserve travel |3.1.4a| | 1 |
| Stop lamp does not illuminate immediately a brake applies control 1 |1.3.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear suspension component misaligned |2.4.A.1a| | 1 |
| Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Lower Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 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 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 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 |
| Offside Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Front position lamp does not face the front |1.1.1d| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Roller brake test indicates a binding brake 30kgf bind
|3.3.A1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Headlamp switch faulty |1.2.4| | 1 |
| Offside Headlamp switch faulty |1.2.4| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Offside Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp not working Front lever |4.3.1 |a| |ii|| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Valve stem seriously misaligned Valve stem to long and fouling on brake caliper (5.2.3 (j)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect Continental headlamp fitted, corrected with mask. (4.1.2 (c)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working for both brakes (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly revs increase on r/h lock (6.2.7 (a) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Headlamp not working on dipped beam both (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |