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

KTM SX

125cc Petrol Class 1
#4311 of 5426 overall #208 of 230 KTMs #239 of 734 commuter bikes
74.9%
first-time pass rate
13.6%
failed outright
2,383
median miles at test
243
MOT tests, 2005–2025

What fails on a SX

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
steering and suspension
17 21
suspension
12 14.8
lighting and signalling
12 14.8
brakes
9 11.1
tyres
7 8.6
lamps and reflectors
6 7.4
tyres and wheels
6 7.4
audible warning (Horn)
5 6.2
Identification of the vehicle
4 4.9
wheels
3 3.7

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 SX beats 4 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 SX.