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

SUZUKI GN 125 E

124cc Petrol Class 1
#4662 of 5426 overall #640 of 680 SUZUKIs #343 of 734 commuter bikes
71.0%
first-time pass rate
15.6%
failed outright
11,161
median miles at test
1,148
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2023

The GN 125 E's first-time pass rate has fallen 3.1 points since 2008, 75.0% to 71.9%.

58%71%85%2008: 75.0% pass (56 tests)2009: 69.4% pass (85 tests)2010: 67.3% pass (107 tests)2011: 67.6% pass (108 tests)2012: 72.9% pass (107 tests)2013: 64.4% pass (90 tests)2014: 71.6% pass (88 tests)2015: 77.2% pass (79 tests)2016: 74.0% pass (77 tests)2017: 62.0% pass (71 tests)2018: 74.4% pass (39 tests)2019: 79.5% pass (39 tests)2020: 69.2% pass (39 tests)2021: 80.0% pass (40 tests)2022: 64.1% pass (39 tests)2023: 71.9% pass (32 tests)20082023

Pass rate by mileage

how the GN 125 E's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GN 125 E passes first time 75.7% of the time; by 30k that's 57.9%.

54%67%79%0k: 75.7% pass (510 tests)10k: 70.0% pass (390 tests)20k: 65.1% pass (146 tests)30k: 57.9% pass (57 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 GN 125 E

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
121 25.3 1.7×
brakes
78 16.3 1.1×
drive system
77 16.1 6.4×
steering and suspension
67 14 1.4×
lamps and reflectors
41 8.6 1.1×
tyres and wheels
34 7.1 1.3×
structure and attachments
21 4.4 1.7×
steering
14 2.9 2.7×
suspension
13 2.7 1.3×
body and structure
13 2.7 1.8×

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 GN 125 E beats 1 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 GN 125 E.

Pass rate by registration year

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

Best year to buy used: 2008 (76.0% pass). Weakest: 2004 (58.9%).

55%67%79%2003: 69.0% pass (58 tests)2004: 58.9% pass (90 tests)2005: 74.5% pass (408 tests)2006: 66.8% pass (295 tests)2007: 75.0% pass (236 tests)2008: 76.0% pass (50 tests)200320062008

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 GN 125 E FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GN 125 E reliable?

The SUZUKI GN 125 E is less reliable than average for its class: 71.0% of its 1,148 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4662 of 5426 models.

What does a GN 125 E fail its MOT on most?

lighting and signalling — 25% of all defects recorded against failed GN 125 E tests.

What is the best year of GN 125 E to buy used?

By first-time pass rate, 2008-registered examples do best (76.0%) and 2004 worst (58.9%). Condition and history still trump the year.

How many miles will a GN 125 E last?

The median GN 125 E shows 11,161 miles at test, and examples around 30k miles still pass 57.9% of the time — mileage alone rarely kills one.