1979 Honda Cb400f MOT Pass Rate
Pass rate for Cb400f models manufactured in 1979, based on 156 real MOT test results.
Data from official DVSA MOT testing records
1979 Honda Cb400f MOT Analysis
The 1979 Honda Cb400f has an MOT pass rate of 84.6% based on 156 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 35,152 miles on the odometer. With a 15.4% failure rate, the 1979 Cb400f is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1979 Honda Cb400f is Motorcycle tyres, responsible for 0.6% of failures. 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 range from £50–200 per tyre.
Top failures specific to 1979 models only. The overall Cb400f 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 Tyres | 0.6% | 1 |
Failures per 10,000 Miles
avg. 35,152 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 tyres | 0.18 | 0.6% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1979 Honda Cb400f has an MOT pass rate of 84.6% based on 156 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 35,152 miles on the odometer. With a 15.4% failure rate, the 1979 Cb400f is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1979 Honda Cb400f, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle tyres: 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. With relatively low average mileage of 35,152 miles, many of these vehicles are still in good mechanical condition.
Motorcycle tyres — 0.6% of failures
Motorcycle tyres issues account for 0.6% of MOT failures on 1979 Honda Cb400f 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.