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JMC 231N

1975 Triumph Unknown

Black Petrol 736cc
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MOT Status

Valid
Expires17 Aug 2026
Tests4 (4 pass, 0 fail)
Pass rate100%

Mileage

40,203 mi
Last recorded40,203 miles
Recorded on18 Aug 2025
Typical for 1975 Triumph Unknown17,472 mi

Significantly above average — investigate

4 checks still locked for this Triumph
Stolen
Finance
Write-off
Keepers
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Vehicle Details

RegistrationJMC 231N
MakeTriumph
ModelUnknown
Year1975
ColourBlack
Fuel typePetrol
Engine736cc

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50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

4 pass
Pass 18 Aug 2025 40,203 miles
Pass 22 Sep 2020 39,516 miles
Pass 19 Mar 2019 39,401 miles
Pass 5 Apr 2018 37,766 miles

How Reliable is the Triumph Unknown?

Based on 3,763 MOT tests across 2,269 vehicles.

88.8%
Pass Rate
286
Miles/Year
66
Year Lifespan
2,269
On UK Roads

Top MOT Failure Points

shock absorber seal failed and leaking oil 13
Stop lamp does not illuminate immediately a brake applies 13
Direction indicators not working 6
Full Triumph Unknown reliability report

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JMC 231N is a 1975 Triumph Unknown in Black with a 736cc petrol engine. This vehicle has been through 4 MOT tests with a personal pass rate of 100%.

Across all 1975 Triumph Unknown models, the average MOT pass rate is 84.2% with a typical mileage of 17,472 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Triumph Unknown fails its MOT is shock absorber seal failed and leaking oil, accounting for 13 recorded failures. If you're considering buying JMC 231N, it's worth having these areas checked by a mechanic before committing.

The Triumph Unknown typically stays on UK roads for around 66 years. At 51 years old, this Triumph Unknown is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of JMC 231N?

You can check the full history of JMC 231N by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was JMC 231N registered?

JMC 231N is a 1975 Triumph Unknown, first registered on 27 May 1975.

Is JMC 231N safe to buy?

The MOT history for JMC 231N shows 4 tests with a 100% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does JMC 231N have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on JMC 231N. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.