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T231 WGJ

1999 Triumph Thunderbird

Silver Petrol 885cc
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MOT Status

Valid
Expires8 May 2027
Tests19 (15 pass, 4 fail)
Pass rate78.9%

Mileage

31,220 mi
Last recorded31,220 miles
Recorded on9 May 2026
Typical for 1999 Triumph Thunderbird14,415 mi

Significantly above average — investigate

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

RegistrationT231 WGJ
MakeTriumph
ModelThunderbird
Year1999
ColourSilver
Fuel typePetrol
Engine885cc

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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

15 pass 4 fail
Pass 9 May 2026 31,220 miles
Fail 9 May 2026 31,220 miles

Registration plate inscription illegible (0.1 (b))

Pass 2 May 2025 30,393 miles
Pass 2 May 2024 29,508 miles
Pass 29 Apr 2023 28,590 miles
Pass 28 Apr 2022 27,440 miles

Nearside Front Shock absorber has a light misting of oil (5.3.2 (b))

Offside Front Shock absorber has a light misting of oil (5.3.2 (b))

Pass 1 May 2021 26,565 miles
Pass 25 Jun 2019 25,742 miles
Pass 28 Jun 2018 24,621 miles

Front frontbrake fluid discoulored

Pass 24 Jun 2017 23,538 miles
Pass 27 Jun 2016 22,217 miles

chain has slight tight spot but not affecting bike

Pass 6 Jun 2015 20,870 miles
Fail 6 Jun 2015 20,870 miles

Front Brake lever cannot be applied smoothly (3.1.3d)

Front Tyre tread depth is below minimum requirements of 1.0mm (4.1.3(ii))

Throttle has a significant change in engine speed whilst moving the steering from lock to lock (2.1.4)

Pass 11 Mar 2014 19,433 miles
Pass 10 Feb 2009 19,371 miles
Pass 16 Jul 2007 17,931 miles
Fail 13 Jul 2007 17,931 miles

Front Brake pad(s) less than 1.5 mm thick (3.2.A1f(i))

Rear Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d)

Chain guard missing

Pass 6 Jul 2006 16,272 miles
Fail 5 Jul 2006 16,272 miles

Headlamp aim too low when the centre of the headlamp is above 850mm from the ground (1.6.3)

Rear Brake pad(s) less than 1.5 mm thick (3.2.A1f(i))

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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T231 WGJ is a 1999 Triumph Thunderbird in Silver with a 885cc petrol engine. This vehicle has been through 19 MOT tests with a personal pass rate of 78.9%.

Across all 1999 Triumph Thunderbird models, the average MOT pass rate is 88.6% with a typical mileage of 14,415 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 T231 WGJ, 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 27 years old, this Triumph Thunderbird is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of T231 WGJ?

You can check the full history of T231 WGJ by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was T231 WGJ registered?

T231 WGJ is a 1999 Triumph Thunderbird, first registered on 22 April 1999.

Is T231 WGJ safe to buy?

The MOT history for T231 WGJ shows 19 tests with a 78.9% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does T231 WGJ 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 T231 WGJ. 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.