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SL17 GXC

2017 Triumph Thunderbird

Black Petrol 1700cc
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MOT Status

Valid
Expires15 Jul 2026
Tests9 (7 pass, 2 fail)
Pass rate77.8%

Mileage

29,829 mi
Last recorded29,829 miles
Recorded on16 Jul 2025
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

RegistrationSL17 GXC
MakeTriumph
ModelThunderbird
Year2017
ColourBlack
Fuel typePetrol
Engine1,700cc

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50+ data points
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MOT History

7 pass 2 fail
Pass 16 Jul 2025 29,829 miles
Pass 21 Oct 2024 27,318 miles

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

Pass 23 Oct 2023 25,375 miles
Pass 2 Nov 2022 21,578 miles

Front Brake indicates slight fluctuation of brake effort (1.2.1 (e))

Pass 18 Oct 2021 17,369 miles

Front Brake indicates slight fluctuation of brake effort (1.2.1 (e))

Fail 12 Oct 2021 17,309 miles

Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e))

Pass 22 Sep 2020 13,912 miles
Fail 22 Sep 2020 13,912 miles

Registration plate lamp does not illuminate simultaneously with the position lamp(s) (4.7.2 (a))

Pass 13 Apr 2020

COVID-19 6 MONTH EXTENSION

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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SL17 GXC 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 SL17 GXC, 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 SL17 GXC?

You can check the full history of SL17 GXC by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was SL17 GXC registered?

SL17 GXC is a 2017 Triumph Thunderbird, first registered on 22 April 2017.

Is SL17 GXC safe to buy?

The MOT history for SL17 GXC 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 SL17 GXC 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 SL17 GXC. 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.