BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/GZ 125 W
Model report · 2005–2025

SUZUKI GZ 125 W

124cc Petrol Class 1
64.2%
first-time pass rate
27.6%
failed outright
12,866
median miles at test
134
MOT tests, 2005–2025

What fails on a GZ 125 W

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
brakes
21 24.1
lighting and signalling
15 17.2
steering and suspension
14 16.1
lamps and reflectors
11 12.6
drive system
10 11.5
structure and attachments
7 8
tyres and wheels
5 5.7
steering
2 2.3
reg plates and vin
1 1.1
driving controls
1 1.1

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 GZ 125 W 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 GZ 125 W.

Pass rate by registration year

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

Best year to buy used: 1998 (64.0% pass). Weakest: 1998 (64.0%).

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.