| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 27 |
| Headlamp aim beam image kick up to the offside |1.6| | 11 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 9 |
| Registration plate issues | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Registration plate lamp issues | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Offside Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Nearside Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Centre Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Exhaust excessively deteriorated clamp rusted off |7.1.1a| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Front Upper Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Stop lamp not working Front brake lamp switch not working. |4.3.1 |a| |ii|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Steering lock stop maladjusted |2.1.3| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp remains on when the brake is released rear brake |1.3.1e| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Front Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls doesnt work when pedal pressed (4.3.2 (a) (iii)) | 1 |
| Headlamp aim projected beam image obviously incorrect kicks up to the right (4.1.2 (c)) | 1 |
| Nearside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect both kick-ups are to offside (4.1.2 (c)) | 1 |
| Nearside Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working Stop light not working from front brake lever. (4.3.1 (a) (ii)) | 1 |