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1978 Honda Cb250n MOT Pass Rate

Pass rate for Cb250n models manufactured in 1978, based on 147 real MOT test results.

77.6%
Pass Rate
22.4%
Fail Rate
147
Total Tests
32,446
Avg Mileage

Data from official DVSA MOT testing records

1978 Honda Cb250n MOT Analysis

The 1978 Honda Cb250n has an MOT pass rate of 77.6% based on 147 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 32,446 miles on the odometer. With a 22.4% failure rate, the 1978 Cb250n is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1978 Honda Cb250n is Motorcycle structure and attachments, responsible for 0.7% 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.

Top failures specific to 1978 models only. The overall Cb250n page may show different rankings.

What Fails Most

Motorcycle structure and attachments 0.7%

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Motorcycle Structure And Attachments0.7%1

Failures per 10,000 Miles

avg. 32,446 mi

For 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.

Motorcycle structure and attachments0.21% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle structure and attachments0.210.7%1

Mileage Statistics

32,446
Mean
32,527
Median
15,042
25th Percentile
41,039
75th Percentile
6.90% failures per 10K miles

Mileage-adjusted failure rate — accounts for how much this model year is typically driven.

About This Data

The 1978 Honda Cb250n has an MOT pass rate of 77.6% based on 147 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 32,446 miles on the odometer. With a 22.4% failure rate, the 1978 Cb250n is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1978 Honda Cb250n, 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 32,446 miles, many of these vehicles are still in good mechanical condition.

Motorcycle structure and attachments — 0.7% of failures

Motorcycle structure and attachments issues account for 0.7% of MOT failures on 1978 Honda Cb250n 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.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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