| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 48 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 21 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 14 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 14 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 12 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Rear wheel insecure |4.2.3b| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Horn not working |1.7.3a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp aim not tested |1.6| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Indicator switch defective |1.5.4| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front mudguard insecure |2.3.7| | 2 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Registration plate lamp issues | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 2 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear suspension bush has excessive free play engine mounts
|2.4.A2a|i|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Lower Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Registration plate issues | 1 |
| Offside Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Fuel cap sealing washer missing |7.2.2c| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Steering headbearing excessively stiff or notchy excessively stiff (2.2.2 (f) (i)) | 1 |
| Nearside Rear Road spring insecure |5.3.1 |a| |i|| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies control |1.3.1a| | 1 |
| Riders seat insecure Does not fasten securely , lock missing |6.2.1a| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| An item not tested |Manual| | 1 |
| Nearside Front Brake locking device missing |3.2.A1e| | 1 |
| Offside Front Brake locking device missing |3.2.A1e| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Central Rear Suspension arm attachment bracket/mounting insecure 3 bolts missing from suspension arm (5.3.3 (a) (i)) | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Front Wheel fixing missing (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies Only one of 6 strip bulbs working |1.3.1a| | 1 |
| Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies THREE out of five bulbs not working |1.3.1a| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Front An item not tested |Manual| | 1 |
| Nearside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Exhaust is leaking and excessively noisey silencer to pipe gasket missing replaced |7.1.1b| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Offside Rear Lower Rear reflector on motorcycle does not reflect squarely to the rear no rear reflector |1.4.1| | 1 |
| Offside Rear Rear position lamp does not face the rear o/s rear position lamp very dim |1.1.1d| | 1 |
| Centre Rear Stop lamp emits other than a steady red light number plate light not working |1.3.1b| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |