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Ktm 790 Duke 20 Reliability, MOT Pass Rate & Common Faults

Free Ktm 790 Duke 20 car check

Is the Ktm 790 Duke 20 reliable? We analysed 1,171 real MOT tests across 403 vehicles to find out.

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Data last updated: · Based on 1,171 real MOT tests
MOT Pass Rate
89.8%
Typical Mileage
5,842mi
Annual Mileage
1,055mi/yr
Est. Lifespan
yrs

The Ktm 790 Duke 20 is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Ktm 790 Duke 20.

Ktm 790 Duke 20 Number Plates

Number plates registered to a Ktm 790 Duke 20. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

Ktm 790 Duke 20 MOT Pass Rate by Year

How likely is a Ktm 790 Duke 20 to pass its MOT? Here's the pass rate for each registration year, newest first.

87.1%
2021
90.5%
2020

Ktm 790 Duke 20 Common Faults & Problems

These are the most common serious faults found on Ktm 790 Duke 20 models during MOT testing — flagged as dangerous or major failures that need immediate attention.

Tyre tread depth is below minimum requirements of 1.0mm 21
Stop lamp does not illuminate by the operation of both brake controls 2
Stop lamp remains on when the brakes are released 2

Ktm 790 Duke 20 Mileage — What's Normal?

How many miles does a typical Ktm 790 Duke 20 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.

Low usage
400 mi/yr
Typical
1,055 mi/yr
Average
1,637 mi/yr
Heavy usage
2,100 mi/yr

Ktm 790 Duke 20 MOT Data by Registration Year

Full breakdown of pass rate and mileage for each year. Use this to compare the Ktm 790 Duke 20 year you're looking at.

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
2021 217 87.1% 3,583 5,856 9,108
2020 891 90.5% 3,268 5,608 9,119

How Long Does a Ktm 790 Duke 20 Last?

Based on 403 Ktm 790 Duke 20 vehicles on UK roads.

Average
4.4 years
Median
4.0 years

Ktm 790 Duke 20 Mileage Distribution

Total mileage recorded across all Ktm 790 Duke 20 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
5,842 mi
75th Percentile
9,163 mi
95th Percentile
17,090 mi
Max Recorded
56,819 mi

Best Year to Buy a Used Ktm 790 Duke 20

Based on MOT pass rates across all registration years with sufficient test data.

Best year
2020

90.5% MOT pass rate from 891 tests

Year to avoid
2021

87.1% MOT pass rate from 217 tests

The best year to buy a used Ktm 790 Duke 20 is 2020, which has the highest MOT pass rate at 90.5% across 891 tests. The 2021 model year has the lowest pass rate at 87.1% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the Ktm 790 Duke 20 Compare?

MOT pass rates compared to similar models. Click any model for the full breakdown.

Model Pass Rate Tests Typical Mileage Lifespan
Ktm 790 Duke 20 THIS CAR 89.8% 1,171 5,842 mi — yrs
Ktm 125 76.8% 13,595 10,169 mi 21 yrs
Ktm 950 86.8% 11,776 15,596 mi 23 yrs
Ktm 640 LC4-E 83.6% 9,903 8,082 mi 27 yrs
Ford Mustang Mach 1 91% 546 13,228 mi — yrs

Compared to the Ktm 125 (76.8% pass rate) and the Ktm 950 (86.8% pass rate), the Ktm 790 Duke 20 outperforms both on MOT reliability.

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Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.

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Should you buy a used Ktm 790 Duke 20?

The Ktm 790 Duke 20 has an overall MOT pass rate of 89.8% across 1,171 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.

On the safety side, the most frequently flagged dangerous fault is tyre tread depth is below minimum requirements of 1.0mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Ktm 790 Duke 20 with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.

A typical Ktm 790 Duke 20 owner drives around 1,055 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.

Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.

Ktm 790 Duke 20 — Frequently Asked Questions

Is the Ktm 790 Duke 20 reliable?
Based on 1,171 MOT tests, the Ktm 790 Duke 20 has a 89.8% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Ktm 790 Duke 20?
The most common failure point is general wear and tear.
How many miles does a Ktm 790 Duke 20 do per year?
The typical Ktm 790 Duke 20 does around 1,055 miles per year. Anything significantly above or below this is worth investigating.
How long does a Ktm 790 Duke 20 last?
Lifespan data is not yet available for this model.
Should I get a vehicle check before buying a Ktm 790 Duke 20?
Yes. An MOT pass rate tells you about the model in general, but a vehicle history check reveals the specific car's finance, stolen, write-off and mileage history — things the seller may not disclose.
What is the best year to buy a Ktm 790 Duke 20?
Based on MOT pass rates, the best year to buy a used Ktm 790 Duke 20 is 2020 with a 90.5% pass rate across 891 tests.