1961 Norton 99 MOT Pass Rate
Pass rate for 99 models manufactured in 1961, based on 54 real MOT test results.
Data from official DVSA MOT testing records
1961 Norton 99 MOT Analysis
The 1961 Norton 99 has an MOT pass rate of 96.3% based on 54 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 35,483 miles on the odometer. With a 3.7% failure rate, the 1961 99 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1961 Norton 99 is Motorcycle drive system, responsible for 1.9% 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 lighting and signalling is the second most common issue at 1.9%. Motorcycle steering and suspension follows at 1.9%.
Top failures specific to 1961 models only. The overall 99 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 | 1.9% | 1 |
| 2 | Motorcycle Lighting And Signalling | 1.9% | 1 |
| 3 | Motorcycle Steering And Suspension | 1.9% | 1 |
Failures per 10,000 Miles
avg. 35,483 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.
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| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Motorcycle drive system | 0.52 | 1.9% | 1 |
| Motorcycle lighting and signalling | 0.52 | 1.9% | 1 |
| Motorcycle steering and suspension | 0.52 | 1.9% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1961 Norton 99 has an MOT pass rate of 96.3% based on 54 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 35,483 miles on the odometer. With a 3.7% failure rate, the 1961 99 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1961 Norton 99, 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 35,483 miles, many of these vehicles are still in good mechanical condition.
Motorcycle drive system — 1.9% of failures
Motorcycle drive system issues account for 1.9% of MOT failures on 1961 Norton 99 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 lighting and signalling — 1.9% of failures
Motorcycle lighting and signalling issues account for 1.9% of MOT failures on 1961 Norton 99 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 — 1.9% of failures
Motorcycle steering and suspension issues account for 1.9% of MOT failures on 1961 Norton 99 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.