| Most common failures | No# failures |
|---|
| Registration plate issues | 30 |
| Rear reflector missing (4.8.2 (a) (ii)) | 10 |
| Headlamp aim out of alignment | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Stop lamp remains on when the brakes are released | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Registration plate lamp issues | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Front Shock absorber has a serious fluid leak Fork seal |5.3.2 |b|| | 1 |
| All direction indicators missing Indicator switch still present. (4.4.1 (a) (ii)) | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Direction indicator missing both |1.5.1a| | 1 |
| Rear Direction indicator with a multiple light source more than 1/2 not functioning both (4.4.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls rear control not working (4.3.2 (a) (iii)) | 1 |
| Front Brake lever has restricted free movement hitting throttle cable (1.1.15 (e)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Central Front Headlamp not working on dipped beam the hole light unit not working (4.1.1 (a) (ii)) | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Central Rear Stop lamp not working ADJUST SWITCH ON FOOT PEDAL |4.3.1 |a| |ii|| | 1 |
| Shock absorber has a serious fluid leak both front |5.3.2 |b|| | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Shock absorber has a serious fluid leak N/S/F fork seal leaking (5.3.2 (b)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Central Rear Inner Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Rear Lower Brake component insecure (1.1.21 (c)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Suspension attachment bracket/mounting insecure rear shock link bolt (5.3.3 (a) (i)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Wheel spoke missing |4.2.1b| | 1 |
| Exhaust has a major leak of exhaust gases front pipe manifold (6.1.2 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Front Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Front Upper Vehicle identification number obviously falsified |0.2 |b|| | 1 |
| Nearside Front Upper Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Central Front Inner Brake excessively binding |1.2.1 |f|| | 1 |
| Central Front Upper Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Central Rear Upper Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Throttle operating incorrectly sticking (6.2.7 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling out to the offside (2.4 (a)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake component inadequately mounted rear brake bracket fitted incorectly |1.1.21 |c|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Footrest insecure |6.2.12 |a|| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Horn missing |1.7.1| | 1 |
| Wheel spoke excessively loose 2 spokes loose in front wheel |4.2.1b| | 1 |
| Wheel spoke excessively loose 5 spokes in rear wheel loose |4.2.1b| | 1 |
| Rear Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |