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1978 Honda Cb500t MOT Pass Rate

Pass rate for Cb500t models manufactured in 1978, based on 66 real MOT test results.

93.9%
Pass Rate
6.1%
Fail Rate
66
Total Tests
23,018
Avg Mileage

Data from official DVSA MOT testing records

1978 Honda Cb500t MOT Analysis

The 1978 Honda Cb500t has an MOT pass rate of 93.9% based on 66 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 23,018 miles on the odometer. With a 6.1% failure rate, the 1978 Cb500t is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1978 Honda Cb500t is Motorcycle brakes, responsible for 1.5% of failures. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs range from £150–400. Motorcycle lighting and signalling is the second most common issue at 1.5%.

⚠ Based on limited data (66 tests)

Top failures specific to 1978 models only. The overall Cb500t page may show different rankings.

What Fails Most

Motorcycle brakes 1.5%
Motorcycle lighting and signalling 1.5%

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 Brakes1.5%1
2Motorcycle Lighting And Signalling1.5%1

Failures per 10,000 Miles

avg. 23,018 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 brakes0.66% per 10K miMotorcycle lighting and signalling0.66% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle brakes0.661.5%1
Motorcycle lighting and signalling0.661.5%1

Mileage Statistics

23,018
Mean
19,920
Median
17,883
25th Percentile
32,390
75th Percentile
2.65% failures per 10K miles

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

About This Data

The 1978 Honda Cb500t has an MOT pass rate of 93.9% based on 66 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 23,018 miles on the odometer. With a 6.1% failure rate, the 1978 Cb500t is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1978 Honda Cb500t, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle brakes: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm). With relatively low average mileage of 23,018 miles, many of these vehicles are still in good mechanical condition.

Motorcycle brakes — 1.5% of failures

Motorcycle brakes issues account for 1.5% of MOT failures on 1978 Honda Cb500t models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).

Motorcycle lighting and signalling — 1.5% of failures

Motorcycle lighting and signalling issues account for 1.5% of MOT failures on 1978 Honda Cb500t 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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