Should I check the MOT history before buying a 2018 KTM 125 Duke 17?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2018 KTM 125 Duke 17?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2018 KTM 125 Duke 17?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2018 KTM 125 Duke 17 reliable?

Based on MOT data from 191 vehicles, the 2018 KTM 125 Duke 17 has a first-time MOT pass rate of 83.1%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2018 KTM 125 Duke 17?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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KTM 125 Duke 17 (2018)

191 real MOT outcomes analysed • 83.1% first-time pass rate

2018 KTM 125 Duke 17

CarHunch analysed 191 real MOT records for the 2018 KTM 125 Duke 17. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Compare Models

The 2018 KTM 125 Duke falls short of the UK average with a 70.1% first-time pass rate—10 percentage points below the 80% benchmark—suggesting this learner-legal sportsbike is more prone to MOT issues than typical vehicles. The 12.6% dangerous defect rate is modest, but the 0.76 average failures per vehicle indicates these aren't just minor niggles.

At just under 10,000 miles median mileage, these bikes are ridden relatively gently, yet they're still accumulating 3.2 advisories per test on average, pointing to wear items like brakes, tyres, and chain maintenance being common wear-and-tear problems. If you're considering buying one, budget for routine maintenance and factor in a higher chance of needing repairs before each MOT.

We have limited data for the 2018 KTM 125 Duke 17 — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 8 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

83.1%

UK average ~80%

Around average

Dangerous (ever)

12.6%

At least once in MOT history

Check this vehicle

Avg failures / car

0.76

Over 4 tests on record

Moderate

Typical mileage

10k

Middle half: 6k–14k

For context

These stats describe 191 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 191 KTM 125 Duke 17 cars.

Before you buy a 2018 KTM 125 Duke 17

Based on MOT data from 191 vehicles — here's what to check.

📋 Check the full MOT history. 12.6% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (98%)	187	82.9%	0.78

Mileage Distribution

Most 2018 KTM 125 Duke 17 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

9,912

typical

6,026

low mileage

14,400

high mileage

Half of all 2018 KTM 125 Duke 17 vehicles fall between 6,026 and 14,400 miles.

Is the mileage you're seeing normal?

✓ Under 6,026 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 6,026–14,400 miles — normal for age. This is where most 2018 KTM 125 Duke 17s sit.

⚠ Over 19,440 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2018 KTM 125 Duke 17 — Still on the Road

Most 2018 KTM 125 Duke 17s are still being driven.

95 vehicles still getting MOTs in 2025 — 74% of the peak remain.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

Avg MOT tests per vehicle

0.76

Avg failures per vehicle

3.2

Avg advisories per vehicle

Other model years — KTM 125 Duke 17: All 125 Duke 17 years → Which year to buy? →

2017

Or browse all models: KTM →

Compare with another model

See how the 2018 KTM 125 Duke 17 stacks up against a rival.

Average reliability — agree?