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T21 THU

2015 Triumph Thunderbird

Blue Petrol 1700cc
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MOT Status

Valid
Expires8 Aug 2026
Tests9 (8 pass, 1 fail)
Pass rate88.9%

Mileage

17,890 mi
Last recorded17,890 miles
Recorded on9 Aug 2025
Typical for 2015 Triumph Thunderbird9,234 mi

Significantly above average — investigate

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

RegistrationT21 THU
MakeTriumph
ModelThunderbird
Year2015
ColourBlue
Fuel typePetrol
Engine1,700cc

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MOT History

8 pass 1 fail
Pass 9 Aug 2025 17,890 miles
Pass 12 Oct 2024 17,818 miles

Central Rear rear brake is dragging slightly

Offside Rear drive belt, running next to pulley lip

Pass 14 Oct 2023 16,316 miles
Pass 8 Oct 2022 13,106 miles
Pass 16 Oct 2021 9,498 miles
Pass 23 Oct 2020 7,770 miles
Pass 26 Jul 2019 7,323 miles

Front Brake lever is bent but brake can still be readily applied (1.1.2 (d))

Rear Brake pedal is bent but brake can still be readily applied (1.1.2 (d))

Fail 23 Jul 2019 7,323 miles

Offside Front Footrest insecure broken (6.2.12 (a))

Rear Registration plate does not conform to the specified requirements (0.1 (d))

Front Brake lever is bent but brake can still be readily applied (1.1.2 (d))

Nearside Rear Direction indicator lens defective which has no effect on emitted light missing (4.4.1 (b) (i))

Rear Brake pedal is bent but brake can still be readily applied (1.1.2 (d))

Pass 17 May 2018 2,271 miles

How Reliable is the Triumph Thunderbird?

Based on 66,789 MOT tests across 6,108 vehicles.

89.1%
Pass Rate
540
Miles/Year
31
Year Lifespan
6,108
On UK Roads

Top MOT Failure Points

Tyre tread depth is below minimum requirements of 1.0mm 473
shock absorber seal failed and leaking oil 371
Stop lamp does not illuminate immediately a brake applies 285
Brake pad(s) less than 1.5 mm thick 249
Roller brake test indicates a binding brake 173
Full Triumph Thunderbird reliability report

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T21 THU is a 2015 Triumph Thunderbird in Blue with a 1,700cc petrol engine. This vehicle has been through 9 MOT tests with a personal pass rate of 88.9%.

Across all 2015 Triumph Thunderbird models, the average MOT pass rate is 90.7% with a typical mileage of 9,234 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The most common reason a Triumph Thunderbird fails its MOT is tyre tread depth is below minimum requirements of 1.0mm, accounting for 473 recorded failures. If you're considering buying T21 THU, it's worth having these areas checked by a mechanic before committing.

The Triumph Thunderbird typically stays on UK roads for around 31 years. At 11 years old, this Triumph Thunderbird is still in the earlier part of its expected life.

Frequently Asked Questions

How do I check the history of T21 THU?

You can check the full history of T21 THU by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was T21 THU registered?

T21 THU is a 2015 Triumph Thunderbird, first registered on 7 May 2015.

Is T21 THU safe to buy?

The MOT history for T21 THU shows 9 tests with a 88.9% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does T21 THU 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 T21 THU. 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.