BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SKYTEAM/ST 125-8
Model report · 2005–2025

SKYTEAM ST 125-8

124cc Petrol Class 1
75.9%
first-time pass rate
15.9%
failed outright
4,463
median miles at test
170
MOT tests, 2005–2025

What fails on a ST 125-8

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
30 36.6
steering and suspension
18 22
drive system
11 13.4
body and structure
5 6.1
brakes
4 4.9
fuel and exhaust
4 4.9
tyres and wheels
3 3.7
driving controls
3 3.7
lamps and reflectors
2 2.4
structure and attachments
2 2.4

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 ST 125-8 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 ST 125-8.

Pass rate by registration year

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

Best year to buy used: 2013 (81.8% pass). Weakest: 2013 (81.8%).

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.