| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Registration plate issues | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Fuel system component leaking |7.2.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| 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 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Horn not working |1.7.3a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Direction indicators not working |1.5.1c| | 2 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Drive chain fouling another component |6.2.1d| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Central Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Lower Horn not working |1.7.3a| | 1 |
| Central Rear Lower Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Central Rear Upper Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Upper Fuel cap sealing washer missing |7.2.2c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Central Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Centre Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Horn missing |1.7.1| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| An item not tested |Manual| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Upper Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Upper Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Brake component leaking fluid |3.2.B4| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Centre Motorcycle structure cracked |6.1.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Brake hose excessively twisted |3.2.B3a| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Front Wheel modified significantly reducing the original strength |4.2.1a| | 1 |
| Front Lower Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicator not working Front & Rear |1.5.1c| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Brake lever has inadequate reserve travel brake lever |3.1.3b| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Suspension arm attachment bracket/mounting insecure Swingarm arm bolt loose |5.3.3 |a| |i|| | 1 |
| All position lamps do not illuminate immediately when switched on (1.1.3a) | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Headlamp at least one does not illuminate on main beam (1.2.2a(ii)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front Shock absorber has negligible damping effect Front suspension, no damping, rough in operation (5.3.2 (b)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect kick up to right (4.1.2 (c)) | 1 |
| Front Brake lever has inadequate reserve travel (3.1.3b) | 1 |
| Front Hydraulic brake control feels spongy (3.1.4a) | 1 |
| Nearside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Offside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Rear Rear reflector on motorcycle missing (1.4.1) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |