Triumph T20 Cub MOT Pass Rate
Overall pass rate across all manufacture years, based on 46 real MOT test results. Failure rate: 8.7%.
Data from official DVSA MOT testing records
Triumph T20 Cub MOT Reliability Overview
The Triumph T20 Cub is a rare vehicle in the UK, with 46 MOT test results recorded in our database spanning 0 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 T20 Cub earns a "Excellent" reliability rating. The average Triumph T20 Cub presents for MOT with approximately 8,467 miles on the clock.
The most common MOT failure for the Triumph T20 Cub is Motorcycle lighting and signalling, affecting 6.5% of all tests. Motorcycle lighting and signalling issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. The second most common issue is Motorcycle fuel and exhaust at 2.2%. Together, these top 2 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
* 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 Lighting And Signalling | 6.5% | 3 |
| 2 | Motorcycle Fuel And Exhaust | 2.2% | 1 |
Failures per 10,000 Miles
avg. 8,467 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 lighting and signalling | 7.70 | 6.5% | 3 |
| Motorcycle fuel and exhaust | 2.57 | 2.2% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Triumph T20 Cub has 8,467 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 T20 Cub has a mileage-adjusted failure rate of 10.28% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Triumph T20 Cub MOT Data
The Triumph T20 Cub is a rare vehicle in the UK, with 46 MOT test results recorded in our database spanning 0 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 T20 Cub owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle lighting and signalling and motorcycle fuel and exhaust 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 T20 Cub is likely to perform.
Motorcycle lighting and signalling — 6.5% of failures
Motorcycle lighting and signalling issues account for 6.5% of MOT failures on the Triumph T20 Cub. Motorcycle lighting and signalling 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.
Motorcycle fuel and exhaust — 2.2% of failures
Motorcycle fuel and exhaust issues account for 2.2% of MOT failures on the Triumph T20 Cub. Motorcycle fuel and exhaust 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 T20 Cub?
Based on 46 (based on limited data) MOT tests in our database, the Triumph T20 Cub has an overall pass rate of 91.3% (8.7% fail rate).
What are the most common MOT failures on a Triumph T20 Cub?
The top 2 reasons a Triumph T20 Cub fails its MOT are: 1. Motorcycle lighting and signalling (6.5%), 2. Motorcycle fuel and exhaust (2.2%). Check these areas before booking your MOT.
Is the Triumph T20 Cub reliable?
With a 8.7% MOT failure rate, the T20 Cub is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Triumph T20 Cub?
Based on failure data, focus on: Motorcycle lighting and signalling (6.5%); Motorcycle fuel and exhaust (2.2%). 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.