KTM DUKE 125

125cc Petrol Class 1

#5084 of 5426 overall #230 of 230 KTMs #204 of 205 naked bikes

63.5%

first-time pass rate

24.5%

failed outright

12,079

median miles at test

249

MOT tests, 2005–2025

Pass rate by mileage

how the DUKE 125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage DUKE 125 passes first time 64.1% of the time; by 20k that's 61.5%.

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 DUKE 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	39	21.4
brakes	32	17.6
lighting and signalling	28	15.4
structure and attachments	21	11.5
steering and suspension	16	8.8
suspension	15	8.2
steering	10	5.5
drive system	8	4.4
tyres and wheels	7	3.8
tyres	6	3.3

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the DUKE 125 beats 0 of its 1 closest rivals (HONDA CB125F).

HONDA CB125F 81.2% pass · 30.6k tests

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 DUKE 125.

Pass rate by registration year

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

Best year to buy used: 2011 (67.9% pass). Weakest: 2012 (62.9%).

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.