BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

KTM RC

125cc Petrol Class 1
#4704 of 5426 overall #225 of 230 KTMs #366 of 734 commuter bikes
70.3%
first-time pass rate
19.2%
failed outright
9,333
median miles at test
3,451
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2017–2025

The RC's first-time pass rate has held steady since 2017 (70.7% → 70.8%).

64%70%76%2017: 70.7% pass (58 tests)2018: 65.9% pass (246 tests)2019: 69.8% pass (513 tests)2020: 71.5% pass (456 tests)2021: 74.3% pass (564 tests)2022: 69.1% pass (528 tests)2023: 68.8% pass (465 tests)2024: 69.6% pass (313 tests)2025: 70.8% pass (305 tests)20172025

Pass rate by mileage

how the RC's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage RC passes first time 75.9% of the time; by 30k that's 61.4%.

55%67%79%0k: 75.9% pass (1,808 tests)10k: 66.7% pass (1,135 tests)20k: 58.2% pass (347 tests)30k: 61.4% pass (101 tests)0k20k30k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a RC

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
591 31.8 7.0×
brakes
359 19.3 1.7×
structure and attachments
341 18.3 9.9×
suspension
188 10.1 6.0×
steering
153 8.2 8.8×
tyres
135 7.3 4.9×
Identification of the vehicle
42 2.3 5.3×
lighting and signalling
30 1.6 0.1×
reg plates and vin
11 0.6 0.4×
drive system
11 0.6 0.3×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the RC beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the RC.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2016 (71.7% pass). Weakest: 2014 (66.8%).

66%69%73%2014: 66.8% pass (298 tests)2015: 68.5% pass (1,277 tests)2016: 71.7% pass (1,824 tests)201420152016

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

KTM RC FAQ

answers computed from the data above · terms in the glossary

Is the KTM RC reliable?

The KTM RC is less reliable than average for its class: 70.3% of its 3,451 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4704 of 5426 models.

What does a RC fail its MOT on most?

lamps and reflectors — 32% of all defects recorded against failed RC tests.

What is the best year of RC to buy used?

By first-time pass rate, 2016-registered examples do best (71.7%) and 2014 worst (66.8%). Condition and history still trump the year.

How many miles will a RC last?

The median RC shows 9,333 miles at test, and examples around 30k miles still pass 61.4% of the time — mileage alone rarely kills one.