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1970 Triumph Tr25w MOT Pass Rate

Pass rate for Tr25w models manufactured in 1970, based on 70 real MOT test results.

90.0%
Pass Rate
10.0%
Fail Rate
70
Total Tests
12,214
Avg Mileage

Data from official DVSA MOT testing records

1970 Triumph Tr25w MOT Analysis

The 1970 Triumph Tr25w has an MOT pass rate of 90.0% based on 70 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 12,214 miles on the odometer. With a 10.0% failure rate, the 1970 Tr25w is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1970 Triumph Tr25w is Motorcycle lighting and signalling, responsible for 2.9% 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 brakes is the second most common issue at 2.9%. Motorcycle drive system follows at 1.4%.

⚠ Based on limited data (70 tests)

Top failures specific to 1970 models only. The overall Tr25w page may show different rankings.

What Fails Most

Motorcycle lighting and signalling 2.9%
Motorcycle brakes 2.9%
Motorcycle drive system 1.4%

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 Lighting And Signalling2.9%2
2Motorcycle Brakes2.9%2
3Motorcycle Drive System1.4%1
4Motorcycle Steering And Suspension1.4%1
5Motorcycle Tyres And Wheels1.4%1

Failures per 10,000 Miles

avg. 12,214 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 lighting and signalling2.34% per 10K miMotorcycle brakes2.34% per 10K miMotorcycle drive system1.17% per 10K miMotorcycle steering and suspension1.17% per 10K miMotorcycle tyres and wheels1.17% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle lighting and signalling2.342.9%2
Motorcycle brakes2.342.9%2
Motorcycle drive system1.171.4%1
Motorcycle steering and suspension1.171.4%1
Motorcycle tyres and wheels1.171.4%1

Mileage Statistics

12,214
Mean
13,240
Median
9,233
25th Percentile
16,228
75th Percentile
8.19% failures per 10K miles

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

About This Data

The 1970 Triumph Tr25w has an MOT pass rate of 90.0% based on 70 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 12,214 miles on the odometer. With a 10.0% failure rate, the 1970 Tr25w is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1970 Triumph Tr25w, 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 12,214 miles, many of these vehicles are still in good mechanical condition.

Motorcycle lighting and signalling — 2.9% of failures

Motorcycle lighting and signalling issues account for 2.9% of MOT failures on 1970 Triumph Tr25w 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 brakes — 2.9% of failures

Motorcycle brakes issues account for 2.9% of MOT failures on 1970 Triumph Tr25w 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 drive system — 1.4% of failures

Motorcycle drive system issues account for 1.4% of MOT failures on 1970 Triumph Tr25w models. Motorcycle drive system 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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