Triumph Speed Four
MotorcycleFrom 336 MOT tests. Above average for its class.
Common MOT failure categories
What goes wrong?
The most common MOT failure reasons are a shock absorber not functioning or leaking severely, brake control has insufficient reserve travel, stop lamp missing and inoperative or in the case of a multiple light source more than 1/2 not functioning. The top issue, a shock absorber not functioning or leaking severely, caused 7 failures in 2024. Checking tread depth (1.6mm legal minimum, 3mm recommended) before your test can save an unnecessary fail. You can check prices at Black Circles if you need replacements. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| a shock absorber not functioning or leaking severely | 7 |
| brake control has insufficient reserve travel | 4 |
| stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 4 |
| a stop lamp(s) does not illuminate by the operation of both brake controls or remains on when the brakes are released | 4 |
| brake disc or drum significantly and obviously worn | 3 |
| a wheel bearing excessively rough | 3 |
| tyre tread depth not in accordance with the requirements | 3 |
| audible warning not working | 3 |
| the aim of a headlamp is not within limits laid down in the requirements | 3 |
| a transmission belt, chain, sprocket or pulley excessively loose or worn | 3 |
How serious are these failures?
Not all MOT failures are equal. Only 8.1% of Speed Four failures are serious (safety or roadside), below the 44.4% average. When this car fails its MOT, it's more likely to be lights, wipers, or emissions than something dangerous. When it does fail, the average repair bill is around £58.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 2006 | 83.1% | a stop lamp(s) does not illuminate by the operation of both brake controls or remains on when the brakes are released, a shock absorber not functioning or leaking severely |
Typical mileage
Half of all Speed Fours tested had between 13,430 and 29,018 miles on the clock. Relatively low mileage overall. Many are still fairly young.
At 19,786 median miles, the Speed Four has 0.087 failures per 10,000 miles driven.
Other Triumph models
| Triumph Bonneville | 90.9% |
| Triumph Tiger | 91.6% |
| Triumph Sprint | 87.1% |
| Triumph Daytona | 85.9% |
| Triumph Speed Triple | 88.7% |
Common questions
What is the Triumph Speed Four MOT pass rate?
The Triumph Speed Four has a 82.7% MOT pass rate based on 336 real MOT tests. This is above the national average.
What are common MOT failures on a Triumph Speed Four?
The most common MOT failure on the Triumph Speed Four is a shock absorber not functioning or leaking severely, which caused 7 failures. Other common issues include brake control has insufficient reserve travel.
What is the typical mileage of a Triumph Speed Four at MOT?
The median mileage at MOT for a Triumph Speed Four is 19,786 miles. The middle 50% of vehicles tested have between 13,430 and 29,018 miles.
MOT data from DVSA anonymised test results, 2024 test year. Fleet data from DfT vehicle licensing statistics. Crown copyright, OGL v3.0. MOT pass rates are statistical summaries of test outcomes, not assessments of individual vehicle safety or condition. Always inspect a vehicle and check its full MOT history before purchasing. See terms of use.