DVSA Statistics
1977 Triumph Unclassified
MOT Pass Rate & Pre-MOT Checklist
There isn't much MOT data yet for the 1977 Triumph Unclassified (only 13 tests in our DVSA dataset), so these figures are a rough guide. We still highlight common failure items below so you can check before your MOT.
Pass Rate
Based on 13 DVSA anonymised MOT tests · About this data
Pass Rate
92.3%
Higher than average
Limited data available for this model; results may be less representative.
Top Failure Reasons
Common MOT failures for this model
Quick DIY Fix
Windscreen wipers are easy to replace yourself.
Based on DVSA statistics from 13 recorded tests.
Pre-MOT Checklist for 1977 Triumph Unclassified
Based on common failure points for this model, check these items before your MOT:
- 1
Check windscreen for chips or cracks in the driver view zone (Zone A)
Visibility – Common fail on this model
- 2
Listen for knocks or clunks when driving over bumps - bounce each corner
Suspension – Common fail on this model
Do you own this car?
Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact Triumph Unclassified.
Frequently Asked Questions
Is a 1977 Triumph Unclassified likely to fail its MOT?
Based on DVSA statistics, the 1977 Triumph Unclassified has a 92.3% MOT pass rate. This is above average, indicating good reliability for a vehicle of this age.
What are the most common MOT failures on a 1977 Triumph Unclassified?
The most common MOT failure reasons for a 1977 Triumph Unclassified are: windscreen washers not working or not providing sufficient fluid to clear the windscreen, fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1977 Triumph Unclassified fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: windscreen washers not working or not providing sufficient fluid to clear the windscreen, fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1977 Triumph Unclassifieds fail their MOT?
Around 8% of 1977 Triumph Unclassifieds fail their MOT test, meaning roughly 1 in 13 don't pass first time. The most common reasons are windscreen washers not working or not providing sufficient fluid to clear the windscreen and fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users. Pre-checking these items can significantly improve your chances.
What should I check before my 1977 Triumph Unclassified MOT?
Before your 1977 Triumph Unclassified MOT, check these commonly-failed items: windscreen washers not working or not providing sufficient fluid to clear the windscreen, fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. Most are visual checks you can do at home – look for worn tyres, test all lights work, and check for obvious damage or leaks.
Is the 1977 Triumph Unclassified reliable for MOT?
With a 92.3% MOT pass rate, the 1977 Triumph Unclassified performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.