Triumph Unknown (2017)
2017 Triumph Unknown
CarHunch analysed 108 real MOT records for the 2017 Triumph Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
# 2017 Triumph Unknown – MOT Analysis
This is a deeply unreliable model: a 15.7% first-time pass rate is catastrophic compared to the 80% UK average, meaning eight out of every nine of these vehicles fail their MOT on first attempt. The complete absence of dangerous defects (0%) is the only silver lining, but it doesn't offset the fundamental quality problem signalled by that 45 median CarHunch score.
The critically low mileage (median 6,519 miles) suggests these vehicles are either rarely used or rarely survive long enough to accumulate distance, which is concerning rather than reassuring. With virtually no recorded failures or advisories despite the abysmal pass rate, something is systematically wrong with the dataset or the vehicles themselves—likely incomplete service records or severe issues that prevent proper testing. Do not buy this model without a professional inspection by a Triumph specialist, and seriously question why the pass rate is this far below norm.
What to check before buying a 2017 Triumph Unknown
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Triumph Unknown
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2017 Triumph Unknown vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2017 Triumph Unknown vehicles fall between 4,809 and 6,519 miles.
MOT History Averages
Most Common MOT Issues — 2017 Triumph Unknown
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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68.4%
COVID-19 6 MONTH EXTENSION
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10.5%
Front Tyre worn close to legal limit/worn on edge
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5.3%
Central Front Brake disc worn, pitted or scored, but not seriously weakened minor pitting on front discs
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5.3%
little reserve trvel on handbrake
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5.3%
Front Tyre worn close to the legal limit
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5.3%
Nearside Rear Tyre worn close to the legal limit
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5.3%
handbrake travel
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5.3%
Hazard warning lamps not fitted
Data covers a 3-year window centred on 2017. Counts include advisories and failures.
Found a specific Triumph Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.