BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/GX125
Model report · 2005–2025

SUZUKI GX125

124cc Petrol Class 1
#5161 of 5426 overall #677 of 680 SUZUKIs #598 of 734 commuter bikes
61.5%
first-time pass rate
25.8%
failed outright
12,667
median miles at test
761
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2017

The GX125's first-time pass rate has fallen 15.9 points since 2006, 72.6% to 56.7%.

50%64%77%2006: 72.6% pass (62 tests)2007: 62.0% pass (50 tests)2008: 59.6% pass (52 tests)2009: 62.1% pass (58 tests)2010: 63.1% pass (65 tests)2011: 55.6% pass (63 tests)2012: 56.5% pass (62 tests)2013: 58.7% pass (63 tests)2014: 62.3% pass (53 tests)2015: 54.5% pass (44 tests)2016: 65.6% pass (32 tests)2017: 56.7% pass (30 tests)20062017

Pass rate by mileage

how the GX125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GX125 passes first time 66.4% of the time; by 30k that's 48.4%.

45%57%70%0k: 66.4% pass (283 tests)10k: 62.5% pass (232 tests)20k: 56.7% pass (134 tests)30k: 48.4% pass (64 tests)0k20k30k

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 GX125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
203 33.7 3.8×
brakes
127 21.1 2.6×
steering and suspension
100 16.6 2.7×
drive system
71 11.8 9.6×
tyres and wheels
32 5.3 1.8×
lamps and reflectors
31 5.1 1.2×
fuel and exhaust
12 2 2.1×
structure and attachments
10 1.7 1.2×
suspension
9 1.5 1.2×
body and structure
7 1.2 1.6×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the GX125 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k 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 GX125.

Pass rate by registration year

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

Best year to buy used: 2008 (84.5% pass). Weakest: 2005 (56.6%).

51%71%90%2003: 57.3% pass (457 tests)2005: 56.6% pass (106 tests)2007: 69.1% pass (68 tests)2008: 84.5% pass (58 tests)200320072008

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.

SUZUKI GX125 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GX125 reliable?

The SUZUKI GX125 is less reliable than average for its class: 61.5% of its 761 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5161 of 5426 models.

What does a GX125 fail its MOT on most?

lighting and signalling — 34% of all defects recorded against failed GX125 tests.

What is the best year of GX125 to buy used?

By first-time pass rate, 2008-registered examples do best (84.5%) and 2005 worst (56.6%). Condition and history still trump the year.

How many miles will a GX125 last?

The median GX125 shows 12,667 miles at test, and examples around 30k miles still pass 48.4% of the time — mileage alone rarely kills one.