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1978 Honda Cb Two Fifty MOT Pass Rate

Pass rate for Cb Two Fifty models manufactured in 1978, based on 40 real MOT test results.

82.5%
Pass Rate
17.5%
Fail Rate
40
Total Tests
34,960
Avg Mileage

Data from official DVSA MOT testing records

1978 Honda Cb Two Fifty MOT Analysis

The 1978 Honda Cb Two Fifty has an MOT pass rate of 82.5% based on 40 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 34,960 miles on the odometer. With a 17.5% failure rate, the 1978 Cb Two Fifty is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1978 Honda Cb Two Fifty is Motorcycle fuel and exhaust, responsible for 2.5% of failures. Motorcycle fuel and exhaust 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 2.5%.

⚠ Based on limited data (40 tests)

Top failures specific to 1978 models only. The overall Cb Two Fifty page may show different rankings.

What Fails Most

Motorcycle fuel and exhaust 2.5%
Motorcycle lighting and signalling 2.5%

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 Fuel And Exhaust2.5%1
2Motorcycle Lighting And Signalling2.5%1

Failures per 10,000 Miles

avg. 34,960 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 fuel and exhaust0.72% per 10K miMotorcycle lighting and signalling0.72% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle fuel and exhaust0.722.5%1
Motorcycle lighting and signalling0.722.5%1

Mileage Statistics

34,960
Mean
29,306
Median
24,573
25th Percentile
39,065
75th Percentile
5.01% failures per 10K miles

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

About This Data

The 1978 Honda Cb Two Fifty has an MOT pass rate of 82.5% based on 40 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 34,960 miles on the odometer. With a 17.5% failure rate, the 1978 Cb Two Fifty is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1978 Honda Cb Two Fifty, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle fuel and exhaust: 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 34,960 miles, many of these vehicles are still in good mechanical condition.

Motorcycle fuel and exhaust — 2.5% of failures

Motorcycle fuel and exhaust issues account for 2.5% of MOT failures on 1978 Honda Cb Two Fifty models. Motorcycle fuel and exhaust 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 — 2.5% of failures

Motorcycle lighting and signalling issues account for 2.5% of MOT failures on 1978 Honda Cb Two Fifty 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.

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

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