1963 Triumph Twenty One MOT Pass Rate
Pass rate for Twenty One models manufactured in 1963, based on 71 real MOT test results.
Data from official DVSA MOT testing records
1963 Triumph Twenty One MOT Analysis
The 1963 Triumph Twenty One has an MOT pass rate of 90.1% based on 71 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 13,757 miles on the odometer. With a 9.9% failure rate, the 1963 Twenty One is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1963 Triumph Twenty One is Motorcycle lighting and signalling, responsible for 2.8% of failures. 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 range from £100–400. Motorcycle steering and suspension is the second most common issue at 1.4%.
Top failures specific to 1963 models only. The overall Twenty One 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 Lighting And Signalling | 2.8% | 2 |
| 2 | Motorcycle Steering And Suspension | 1.4% | 1 |
Failures per 10,000 Miles
avg. 13,757 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 | 2.05 | 2.8% | 2 |
| Motorcycle steering and suspension | 1.02 | 1.4% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1963 Triumph Twenty One has an MOT pass rate of 90.1% based on 71 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 13,757 miles on the odometer. With a 9.9% failure rate, the 1963 Twenty One is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1963 Triumph Twenty One, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle lighting and signalling: 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 13,757 miles, many of these vehicles are still in good mechanical condition.
Motorcycle lighting and signalling — 2.8% of failures
Motorcycle lighting and signalling issues account for 2.8% of MOT failures on 1963 Triumph Twenty One models. 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 steering and suspension — 1.4% of failures
Motorcycle steering and suspension issues account for 1.4% of MOT failures on 1963 Triumph Twenty One models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.