1971 Triumph T120 MOT Pass Rate
Pass rate for T120 models manufactured in 1971, based on 451 real MOT test results.
Data from official DVSA MOT testing records
This page shows all T120 cars tested in 1971. Want to see how cars built in 1971 hold up over time?
View 1971 Triumph T120 vintage page → (89.7% current pass rate)1971 Triumph T120 MOT Analysis
The 1971 Triumph T120 has an MOT pass rate of 90.9% based on 451 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,696 miles on the odometer. With a 9.1% failure rate, the 1971 T120 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1971 Triumph T120 is Motorcycle drive system, responsible for 0.7% of failures. Motorcycle drive system 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 range from £100–400. Motorcycle brakes is the second most common issue at 0.2%. Motorcycle driving controls follows at 0.2%.
Top failures specific to 1971 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.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Drive System | 0.7% | 3 |
| 2 | Motorcycle Brakes | 0.2% | 1 |
| 3 | Motorcycle Driving Controls | 0.2% | 1 |
| 4 | Motorcycle Lighting And Signalling | 0.2% | 1 |
Failures per 10,000 Miles
avg. 15,696 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 drive system | 0.42 | 0.7% | 3 |
| Motorcycle brakes | 0.14 | 0.2% | 1 |
| Motorcycle driving controls | 0.14 | 0.2% | 1 |
| Motorcycle lighting and signalling | 0.14 | 0.2% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1971 Triumph T120 has an MOT pass rate of 90.9% based on 451 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,696 miles on the odometer. With a 9.1% failure rate, the 1971 T120 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1971 Triumph T120, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle drive system: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights. With relatively low average mileage of 15,696 miles, many of these vehicles are still in good mechanical condition.
Motorcycle drive system — 0.7% of failures
Motorcycle drive system issues account for 0.7% of MOT failures on 1971 Triumph T120 models. Motorcycle drive system 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 brakes — 0.2% of failures
Motorcycle brakes issues account for 0.2% of MOT failures on 1971 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 driving controls — 0.2% of failures
Motorcycle driving controls issues account for 0.2% of MOT failures on 1971 Triumph T120 models. Motorcycle driving controls 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.