| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 12 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 10 |
| Registration plate issues | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Outer Front Lower Fuel hose leaking |7.2.1a| | 1 |
| Front Upper Riders seat insecure |6.2.1a| | 1 |
| Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Lower Front mudguard insecure |2.3.7| | 1 |
| Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Central Rear Inner Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Front Brake hose which buldges |3.2.B4| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |