Triumph Street MOT Pass Rate
Overall pass rate across all manufacture years, based on 19,322 real MOT test results. Failure rate: 8.7%.
Data from official DVSA MOT testing records
Triumph Street MOT Reliability Overview
The Triumph Street is a relatively common sight on UK roads, with 19,322 MOT test results recorded in our database spanning 13 manufacture years. It has an overall MOT pass rate of 91.3% and a failure rate of 8.7%, which is well above the UK average of approximately 37%.
Based on this data, the Triumph Street earns a "Excellent" reliability rating. The average Triumph Street presents for MOT with approximately 7,695 miles on the clock. Manufacture year matters: 2011 models achieve the highest pass rate at 93.3%, while 2008 models have the lowest at 54.2%. This 39.1 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Triumph Street is Motorcycle lamps and reflectors, affecting 6.3% of all tests. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. The second most common issue is Motorcycle brakes at 2.6%. Motorcycle structure and attachments rounds out the top three at 2.1%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Best Year to Buy
Based on MOT data, 2019 models have the highest pass rate at 93.4%.
Based on 2024 MOT test results only — the most recent data available. "Built" = year of manufacture. Cars need their first MOT at 3 years old, so the newest cars shown are from ~3 years ago.
Bar chart showing pass rate by manufacture year from 2017 to 2019
📈 How Each Vintage Ages
Tracking how each manufacture year's MOT pass rate changes as the car ages. Showing 3 vintages — click year chips to highlight.
Multi-line chart showing how different Triumph Street vintages degrade over time, from age 3 to 20 years.
Only vintages with 100+ tests in at least 3 different test years are shown. Fleet average is the UK-wide pass rate for all cars at each age.
📉 How Age Affects Reliability
MOT failure rate by vehicle age for the Triumph Street. The dashed red line marks when the manufacturer warranty typically expires (3 years).
Line chart showing MOT failure rate by vehicle age from 3 to 7 years, with warranty expiry marked at 3 years.
💡 What does the warranty cliff mean?
The Triumph Street ages relatively gracefully. The failure rate increase of 8% after warranty is below average, suggesting good long-term reliability. Peak failure occurs at age 7 (9.4% fail rate).
Note: pass rates may improve for very old vehicles due to survivorship bias — only well-maintained cars remain on the road.
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Lamps And Reflectors | 6.3% | 1,226 |
| 2 | Motorcycle Brakes | 2.6% | 497 |
| 3 | Motorcycle Structure And Attachments | 2.1% | 410 |
| 4 | Motorcycle Tyres | 2.0% | 386 |
| 5 | Identification Of The Vehicle | 1.1% | 205 |
| 6 | Motorcycle Audible Warning (Horn) | 0.8% | 156 |
| 7 | Motorcycle Steering | 0.7% | 144 |
| 8 | Motorcycle Suspension | 0.2% | 46 |
| 9 | Motorcycle Wheels | 0.1% | 23 |
| 10 | Non-component Advisories | 0.1% | 11 |
Failures per 10,000 Miles
avg. 7,695 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Motorcycle lamps and reflectors | 8.25 | 6.3% | 1,226 |
| Motorcycle brakes | 3.34 | 2.6% | 497 |
| Motorcycle structure and attachments | 2.76 | 2.1% | 410 |
| Motorcycle tyres | 2.60 | 2.0% | 386 |
| Identification of the vehicle | 1.38 | 1.1% | 205 |
| Motorcycle audible warning (Horn) | 1.05 | 0.8% | 156 |
| Motorcycle steering | 0.97 | 0.7% | 144 |
| Motorcycle suspension | 0.31 | 0.2% | 46 |
| Motorcycle wheels | 0.15 | 0.1% | 23 |
| Non-component advisories | 0.07 | 0.1% | 11 |
| Motorcycle lighting and signalling | 0.05 | 0.0% | 7 |
| Items Not Tested | 0.01 | 0.0% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Triumph Street has 7,695 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Triumph Street has a mileage-adjusted failure rate of 11.31% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Triumph Street MOT Data
The Triumph Street is a relatively common sight on UK roads, with 19,322 MOT test results recorded in our database spanning 13 manufacture years. It has an overall MOT pass rate of 91.3% and a failure rate of 8.7%, which is well above the UK average of approximately 37%.
For Triumph Street owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle lamps and reflectors and motorcycle brakes for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Street is likely to perform.
Motorcycle lamps and reflectors — 6.3% of failures
Motorcycle lamps and reflectors issues account for 6.3% of MOT failures on the Triumph Street. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Motorcycle brakes — 2.6% of failures
Motorcycle brakes issues account for 2.6% of MOT failures on the Triumph Street. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Motorcycle structure and attachments — 2.1% of failures
Motorcycle structure and attachments issues account for 2.1% of MOT failures on the Triumph Street. Motorcycle structure and attachments issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Frequently Asked Questions
What is the MOT pass rate for the Triumph Street?
Based on 19,322 MOT tests in our database, the Triumph Street has an overall pass rate of 91.3% (8.7% fail rate).
What are the most common MOT failures on a Triumph Street?
The top 3 reasons a Triumph Street fails its MOT are: 1. Motorcycle lamps and reflectors (6.3%), 2. Motorcycle brakes (2.6%), 3. Motorcycle structure and attachments (2.1%). Check these areas before booking your MOT.
Is the Triumph Street reliable?
With a 8.7% MOT failure rate, the Street is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Triumph Street?
Based on failure data, focus on: Motorcycle lamps and reflectors (6.3%); Motorcycle brakes (2.6%); Motorcycle structure and attachments (2.1%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.