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1973 Triumph T140 MOT Pass Rate

Pass rate for T140 models manufactured in 1973, based on 54 real MOT test results.

90.7%
Pass Rate
9.3%
Fail Rate
54
Total Tests
12,610
Avg Mileage

Data from official DVSA MOT testing records

1973 Triumph T140 MOT Analysis

The 1973 Triumph T140 has an MOT pass rate of 90.7% based on 54 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 12,610 miles on the odometer. With a 9.3% failure rate, the 1973 T140 is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1973 Triumph T140 is Motorcycle steering and suspension, responsible for 5.6% of failures. 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 range from £200–500. Motorcycle body and structure is the second most common issue at 1.9%. Motorcycle fuel and exhaust follows at 1.9%.

⚠ Based on limited data (54 tests)

Top failures specific to 1973 models only. The overall T140 page may show different rankings.

What Fails Most

Motorcycle steering and suspension 5.6%
Motorcycle body and structure 1.9%
Motorcycle fuel and exhaust 1.9%

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 Steering And Suspension5.6%3
2Motorcycle Body And Structure1.9%1
3Motorcycle Fuel And Exhaust1.9%1
4Motorcycle Lighting And Signalling1.9%1

Failures per 10,000 Miles

avg. 12,610 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 steering and suspension4.41% per 10K miMotorcycle body and structure1.47% per 10K miMotorcycle fuel and exhaust1.47% per 10K miMotorcycle lighting and signalling1.47% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle steering and suspension4.415.6%3
Motorcycle body and structure1.471.9%1
Motorcycle fuel and exhaust1.471.9%1
Motorcycle lighting and signalling1.471.9%1

Mileage Statistics

12,610
Mean
15,348
Median
3,437
25th Percentile
20,640
75th Percentile
7.38% failures per 10K miles

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

About This Data

The 1973 Triumph T140 has an MOT pass rate of 90.7% based on 54 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 12,610 miles on the odometer. With a 9.3% failure rate, the 1973 T140 is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1973 Triumph T140, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle steering and suspension: 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. With relatively low average mileage of 12,610 miles, many of these vehicles are still in good mechanical condition.

Motorcycle steering and suspension — 5.6% of failures

Motorcycle steering and suspension issues account for 5.6% of MOT failures on 1973 Triumph T140 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 body and structure — 1.9% of failures

Motorcycle body and structure issues account for 1.9% of MOT failures on 1973 Triumph T140 models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.

Motorcycle fuel and exhaust — 1.9% of failures

Motorcycle fuel and exhaust issues account for 1.9% of MOT failures on 1973 Triumph T140 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.

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