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

SUZUKI GSX125

124cc Petrol Class 1
#4769 of 5426 overall #649 of 680 SUZUKIs #395 of 734 commuter bikes
69.5%
first-time pass rate
21.4%
failed outright
10,076
median miles at test
351
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2012–2017

The GSX125's first-time pass rate has risen 6.6 points since 2012, 66.7% to 73.3%.

57%67%77%2012: 66.7% pass (30 tests)2013: 71.4% pass (42 tests)2014: 60.5% pass (43 tests)2015: 63.3% pass (30 tests)2017: 73.3% pass (30 tests)20122017

Pass rate by mileage

how the GSX125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GSX125 passes first time 73.7% of the time; by 20k that's 62.5%.

60%68%76%0k: 73.7% pass (175 tests)10k: 69.6% pass (112 tests)20k: 62.5% pass (40 tests)0k10k20k

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 GSX125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
54 24.3
brakes
41 18.5
lamps and reflectors
30 13.5
drive system
27 12.2
steering and suspension
25 11.3
structure and attachments
18 8.1
tyres and wheels
9 4.1
suspension
6 2.7
driving controls
6 2.7
steering
6 2.7

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 GSX125 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 GSX125.

Pass rate by registration year

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

Best year to buy used: 2007 (71.1% pass). Weakest: 2008 (69.6%).

69%70%72%2007: 71.1% pass (90 tests)2008: 69.6% pass (115 tests)2010: 70.2% pass (84 tests)200720082010

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.