1966 Triumph T120 MOT Pass Rate
Pass rate for T120 models manufactured in 1966, based on 217 real MOT test results.
Data from official DVSA MOT testing records
1966 Triumph T120 MOT Analysis
The 1966 Triumph T120 has an MOT pass rate of 90.8% based on 217 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,105 miles on the odometer. With a 9.2% failure rate, the 1966 T120 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1966 Triumph T120 is Motorcycle brakes, responsible for 1.4% of failures. 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 range from £150–400. Motorcycle structure and attachments is the second most common issue at 0.5%.
Top failures specific to 1966 models only. The overall T120 page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
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| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Brakes | 1.4% | 3 |
| 2 | Motorcycle Structure And Attachments | 0.5% | 1 |
Failures per 10,000 Miles
avg. 15,105 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 brakes | 0.92 | 1.4% | 3 |
| Motorcycle structure and attachments | 0.31 | 0.5% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1966 Triumph T120 has an MOT pass rate of 90.8% based on 217 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,105 miles on the odometer. With a 9.2% failure rate, the 1966 T120 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1966 Triumph T120, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle brakes: 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). With relatively low average mileage of 15,105 miles, many of these vehicles are still in good mechanical condition.
Motorcycle brakes — 1.4% of failures
Motorcycle brakes issues account for 1.4% of MOT failures on 1966 Triumph T120 models. 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 — 0.5% of failures
Motorcycle structure and attachments issues account for 0.5% of MOT failures on 1966 Triumph T120 models. 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.