1980 Honda Cb400 MOT Pass Rate
Pass rate for Cb400 models manufactured in 1980, based on 128 real MOT test results.
Data from official DVSA MOT testing records
1980 Honda Cb400 MOT Analysis
The 1980 Honda Cb400 has an MOT pass rate of 82.8% based on 128 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 31,335 miles on the odometer. With a 17.2% failure rate, the 1980 Cb400 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1980 Honda Cb400 is Motorcycle structure and attachments, responsible for 1.6% of failures. 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 range from £100–400. Motorcycle tyres is the second most common issue at 1.6%. Motorcycle suspension follows at 0.8%.
Top failures specific to 1980 models only. The overall Cb400 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 Structure And Attachments | 1.6% | 2 |
| 2 | Motorcycle Tyres | 1.6% | 2 |
| 3 | Motorcycle Suspension | 0.8% | 1 |
Failures per 10,000 Miles
avg. 31,335 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 structure and attachments | 0.50 | 1.6% | 2 |
| Motorcycle tyres | 0.50 | 1.6% | 2 |
| Motorcycle suspension | 0.25 | 0.8% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1980 Honda Cb400 has an MOT pass rate of 82.8% based on 128 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 31,335 miles on the odometer. With a 17.2% failure rate, the 1980 Cb400 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1980 Honda Cb400, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle structure and attachments: 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 31,335 miles, many of these vehicles are still in good mechanical condition.
Motorcycle structure and attachments — 1.6% of failures
Motorcycle structure and attachments issues account for 1.6% of MOT failures on 1980 Honda Cb400 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.
Motorcycle tyres — 1.6% of failures
Motorcycle tyres issues account for 1.6% of MOT failures on 1980 Honda Cb400 models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Motorcycle suspension — 0.8% of failures
Motorcycle suspension issues account for 0.8% of MOT failures on 1980 Honda Cb400 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.