| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 193 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 84 |
| Steering headbearing has excessive free play |2.2.2| | 75 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 74 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 64 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 63 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 53 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 52 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 47 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 46 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 45 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 45 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 45 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 41 |
| Front wheel bearings have excessive free play |2.3.5b| | 33 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 28 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 27 |
| Headlamp aim beam image kick up to the offside |1.6| | 25 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 24 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 23 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 23 |
| Registration plate issues | 22 |
| Throttle operating incorrectly |6.2.1f| | 22 |
| Exhaust excessively deteriorated |7.1.1a| | 21 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 21 |
| Front wheel bearings are excessively rough |2.3.5b| | 20 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 19 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 19 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 18 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 17 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 17 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 17 |
| Front Steering headbearing has excessive free play |2.2.2| | 17 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 17 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 15 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 15 |
| Horn not working |1.7.3a| | 14 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 13 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 13 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 13 |
| Stop lamp remains on when the brakes are released | 13 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Rear Brake disc|s| cracked |3.2.A1g| | 11 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 11 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 11 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 10 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 9 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 9 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 9 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 9 |
| Handlebar deformed |2.1.1b| | 9 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 9 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 8 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 8 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 8 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 8 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 8 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 7 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 7 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 7 |
| Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 6 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 6 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 6 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 6 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 6 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 5 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 5 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 5 |
| Front Brake excessively binding |1.2.1 |f|| | 5 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 5 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 5 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 5 |