Ktm 125 Duke 21 Reliability, MOT Pass Rate & Common Faults
Free Ktm 125 Duke 21 car check
Is the Ktm 125 Duke 21 reliable? We analysed 1,463 real MOT tests across 687 vehicles to find out.
Got a specific Ktm 125 Duke 21? Enter the reg for a free check:
The Ktm 125 Duke 21 is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Ktm 125 Duke 21.
Ktm 125 Duke 21 Number Plates
Number plates registered to a Ktm 125 Duke 21. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Ktm 125 Duke 21 MOT Pass Rate by Year
How likely is a Ktm 125 Duke 21 to pass its MOT? Here's the pass rate for each registration year, newest first.
Ktm 125 Duke 21 Common Faults & Problems
These are the most common serious faults found on Ktm 125 Duke 21 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Ktm 125 Duke 21 Mileage — What's Normal?
How many miles does a typical Ktm 125 Duke 21 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Ktm 125 Duke 21 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Ktm 125 Duke 21 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2022 | 59 | 84.7% | 5,241 | 7,258 | 11,075 |
| 2021 | 1,350 | 79.4% | 3,832 | 6,941 | 11,186 |
How Long Does a Ktm 125 Duke 21 Last?
Based on 687 Ktm 125 Duke 21 vehicles on UK roads.
Ktm 125 Duke 21 Mileage Distribution
Total mileage recorded across all Ktm 125 Duke 21 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Ktm 125 Duke 21
Based on MOT pass rates across all registration years with sufficient test data.
84.7% MOT pass rate from 59 tests
79.4% MOT pass rate from 1,350 tests
The best year to buy a used Ktm 125 Duke 21 is 2022, which has the highest MOT pass rate at 84.7% across 59 tests. The 2021 model year has the lowest pass rate at 79.4% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Ktm 125 Duke 21 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Ktm 125 Duke 21 THIS CAR | 79.2% | 1,463 | 7,054 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 |
| Land Rover Discovery S D MHEV Auto | 90.4% | 863 | 37,805 mi | — yrs |
Compared to the Ktm 125 (76.8% pass rate) and the Ktm 950 (86.8% pass rate), the Ktm 125 Duke 21 sits in the middle of the pack on MOT reliability.
Found a Ktm 125 Duke 21 you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Ktm 125 Duke 21Should you buy a used Ktm 125 Duke 21?
The Ktm 125 Duke 21 has an overall MOT pass rate of 79.2% across 1,463 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 brake pad(s) less than 1.0 mm thick. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Ktm 125 Duke 21 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 125 Duke 21 owner drives around 1,882 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.