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BYL 997H

1970 Triumph Unknown

Blue Petrol 650cc
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MOT Status

Expired
Expires2 May 2026
Tests1 (1 pass, 0 fail)
Pass rate100%

Mileage

3,824 mi
Last recorded3,824 miles
Recorded on3 May 2025
Typical for 1970 Triumph Unknown3,458 mi

Above average mileage for this year

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

RegistrationBYL 997H
MakeTriumph
ModelUnknown
Year1970
ColourBlue
Fuel typePetrol
Engine650cc

All premium checks include

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

1 pass
Pass 3 May 2025 3,824 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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BYL 997H is a 1970 Triumph Unknown in Blue with a 650cc petrol engine. This vehicle has been through 1 MOT test with a personal pass rate of 100%.

Across all 1970 Triumph Unknown models, the average MOT pass rate is 87.2% with a typical mileage of 3,458 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 BYL 997H, 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 56 years old, this Triumph Unknown is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of BYL 997H?

You can check the full history of BYL 997H by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was BYL 997H registered?

BYL 997H is a 1970 Triumph Unknown, first registered on 29 July 1970.

Is BYL 997H safe to buy?

The MOT history for BYL 997H shows 1 test with a 100% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does BYL 997H 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 BYL 997H. 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.