1974 Harley Davidson Unclassified MOT Pass Rate
Pass rate for Unclassified models manufactured in 1974, based on 157 real MOT test results.
Data from official DVSA MOT testing records
1974 Harley Davidson Unclassified MOT Analysis
The 1974 Harley Davidson Unclassified has an MOT pass rate of 84.7% based on 157 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 14,013 miles on the odometer. With a 15.3% failure rate, the 1974 Unclassified is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1974 Harley Davidson Unclassified is Motorcycle lighting and signalling, responsible for 1.9% of failures. 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 range from £100–400. Motorcycle steering and suspension is the second most common issue at 0.6%. Motorcycle fuel and exhaust follows at 0.6%.
Top failures specific to 1974 models only. The overall Unclassified 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 Lighting And Signalling | 1.9% | 3 |
| 2 | Motorcycle Steering And Suspension | 0.6% | 1 |
| 3 | Motorcycle Fuel And Exhaust | 0.6% | 1 |
Failures per 10,000 Miles
avg. 14,013 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 lighting and signalling | 1.36 | 1.9% | 3 |
| Motorcycle steering and suspension | 0.45 | 0.6% | 1 |
| Motorcycle fuel and exhaust | 0.45 | 0.6% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1974 Harley Davidson Unclassified has an MOT pass rate of 84.7% based on 157 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 14,013 miles on the odometer. With a 15.3% failure rate, the 1974 Unclassified is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1974 Harley Davidson Unclassified, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle lighting and signalling: 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 14,013 miles, many of these vehicles are still in good mechanical condition.
Motorcycle lighting and signalling — 1.9% of failures
Motorcycle lighting and signalling issues account for 1.9% of MOT failures on 1974 Harley Davidson Unclassified 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.
Motorcycle steering and suspension — 0.6% of failures
Motorcycle steering and suspension issues account for 0.6% of MOT failures on 1974 Harley Davidson Unclassified 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.
Motorcycle fuel and exhaust — 0.6% of failures
Motorcycle fuel and exhaust issues account for 0.6% of MOT failures on 1974 Harley Davidson Unclassified 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.