KTM Rc 125 18 (2020)

141 real MOT outcomes analysed • 68.7% first-time pass rate

2020 KTM Rc 125 18

CarHunch analysed 141 real MOT records for the 2020 KTM Rc 125 18. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 2020 KTM RC 125 is struggling relative to UK standards, with a first-time pass rate of just 68.7% against the national average of 80%—that's a meaningful gap suggesting these bikes encounter more teething problems than most. The good news is that only 13.5% have ever experienced dangerous defects, so safety-critical issues aren't widespread.

At nearly 9,200 miles on average, these bikes are running fairly light for their age, which makes the below-average pass rate more concerning—it's not simply wear and tear. The typical bike accumulates 0.4 failures and 1.6 advisories per test, pointing to minor recurring niggles rather than catastrophic failures; if you're considering one, budget for some maintenance early on and ask the seller for full service records to identify any patterns.

Below average reliability 11.3% below UK average
68.7%
pass MOT first time
UK average: ~80%
8,949
typical mileage
4,969–13,151 middle half
13.5%
ever had a dangerous defect
recorded at any MOT
0.4
avg MOT failures per car
over 2.4 tests on record

What to check before buying a 2020 KTM Rc 125 18

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 KTM Rc 125 18

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (99%) 140 68.5% 0.4
Other (1%) 1 100% 0

Mileage Distribution

Most 2020 KTM Rc 125 18 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.

4,969
low mileage
8,949
typical
13,151
high mileage

Half of all 2020 KTM Rc 125 18 vehicles fall between 4,969 and 13,151 miles.

2020 KTM Rc 125 18 — Still on the Road

Strong survival — 82 vehicles still getting MOTs in 2025, 95% of the peak.

86 82 2023 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

2.4
Avg MOT tests per vehicle
0.4
Avg failures per vehicle
1.6
Avg advisories per vehicle

Found a specific KTM Rc 125 18?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — KTM Rc 125 18:

2018 2019