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TR66 STM

2017 Triumph Thunderbird

Black Petrol 1700cc
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MOT Status

Valid
Expires15 Apr 2027
Tests9 (7 pass, 2 fail)
Pass rate77.8%

Mileage

19,890 mi
Last recorded19,890 miles
Recorded on16 Apr 2026
Typical for 2017 Triumph Thunderbird7,719 mi

Significantly above average — investigate

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

RegistrationTR66 STM
MakeTriumph
ModelThunderbird
Year2017
ColourBlack
Fuel typePetrol
Engine1,700cc

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MOT History

7 pass 2 fail
Pass 16 Apr 2026 19,890 miles

Central Lower Brake pipe slightly corroded (1.1.11 (c))

Central Rear Inner Brake pipe slightly corroded (1.1.11 (c))

Front Brake hose has slight corrosion to ferrules (1.1.12 (f) (i))

Rear Brake binding but not excessively (1.2.1 (f))

Rear Brake hose has slight corrosion to ferrules (1.1.12 (f) (i))

Pass 10 Jan 2025 19,886 miles
Fail 10 Jan 2025 19,886 miles

Throttle operating incorrectly (6.2.7 (a) (i))

Pass 14 Dec 2023 19,815 miles
Pass 9 Jan 2023 19,708 miles
Fail 9 Jan 2023 19,708 miles

Headlamp aim too low (4.1.2 (a))

Pass 11 Jan 2022 19,146 miles
Pass 7 Jan 2021 13,968 miles
Pass 3 Jan 2020 8,823 miles

Offside Front Brake pad(s) close to minimum limit (1.1.13 (a))

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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TR66 STM is a 2017 Triumph Thunderbird in Black with a 1,700cc petrol engine. This vehicle has been through 9 MOT tests with a personal pass rate of 77.8%.

Across all 2017 Triumph Thunderbird models, the average MOT pass rate is 91.3% with a typical mileage of 7,719 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 TR66 STM, 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 9 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 TR66 STM?

You can check the full history of TR66 STM by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was TR66 STM registered?

TR66 STM is a 2017 Triumph Thunderbird, first registered on 4 January 2017.

Is TR66 STM safe to buy?

The MOT history for TR66 STM shows 9 tests with a 77.8% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does TR66 STM 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 TR66 STM. 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.