| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Registration plate issues | 21 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Headlamp aim beam image kick up to the offside |1.6| | 11 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Headlamp aim beam image kick up to the offside (1.6) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Brake fluid reservoir fluid not visible |1.1.10 |d| |iii|| | 1 |
| Front Brake fluid not visible |1.1.10 |d| |iii|| | 1 |
| Front Brake fluid reservoir fluid not visible reservoir is missing |1.1.10 |d| |iii|| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 1 |
| Front Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Nearside Front Upper Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Stop lamp obscured |1.3.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Direction indicator flashing more than 120 times per minute all |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Headlamp incorrect colour |1.2.1| | 1 |
| Nearside Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition (7.1.2) | 1 |
| Nearside Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Rear Brake fluid reservoir fluid level dangerously low (3.2.B1d) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake cylinder insecure And reservoir (1.1.16 (c) (i)) | 1 |
| Front Valve stem seriously damaged Cracking (5.2.3 (j)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |