| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 36 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 17 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Position lamp switch insecure |1.1.4b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Registration plate issues | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Brake performance not tested |3.3| | 1 |
| Offside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive belt sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Horn not working grating (7.7 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Central Rear Lower Exhaust mounting missing bracket missing |7.1.1c| | 1 |
| Offside Front Lower Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Offside Front Footrest insecure split pin broken |6.2.1a| | 1 |
| Central Riders seat insecure latch is loose |6.2.1a| | 1 |
| An item not tested |Manual| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Headlamp aim not tested too dirty cannot see pattern |1.6| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride main stand stop not fitted correctly |6.2.1h| | 1 |
| Headlamp aim headlamp deteriorated and function impaired dirty lens |1.2.3a| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Floor brake test indicates a severely juddering brake verified by road test |3.3C2d.| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| All direction indicators not working tell tale |4.4.1 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Lower Steering headbearing in such a condition that steering control is adversely affected bearing worn |2.2.2 |f| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain fouling another component |6.2.1d| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear reflector on sidecar incorrectly positioned |1.4.2d| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Front Lower Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake hose fouling Fairing |3.2.B3b| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear Drive chain fouling another component fowling on main stand. |6.2.1d| | 1 |
| Rear Brake cylinder leaking hydraulic fluid Rear brake caliper banjo bolt. |3.2.B1e| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Engine mounting/bracket fractured (6.1.8 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Centre Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Lower Motorcycle structure cracked |6.1.1a| | 1 |
| Front Upper Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Lower Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Offside Motorcycle structure cracked |6.1.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Exhaust is leaking and excessively noisey front pipes to centre |7.1.1b| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Centre Front Front position lamp missing |1.1.1a| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Stop lamp not working Control 2 (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |