SUZUKI GN

125cc Petrol Class 1

#4347 of 5426 overall #598 of 680 SUZUKIs #245 of 734 commuter bikes

74.6%

first-time pass rate

16.2%

failed outright

18,233

median miles at test

1,027

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2023

The GN's first-time pass rate has risen 16.5 points since 2006, 70.0% to 86.5%.

Pass rate by mileage

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

A low-mileage GN passes first time 79.8% of the time; by 40k that's 66.7%.

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

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	108	26.7	1.7×
steering and suspension	78	19.3	2.1×
brakes	61	15.1	1.0×
drive system	35	8.6	3.2×
tyres and wheels	28	6.9	1.2×
lamps and reflectors	22	5.4	0.9×
body and structure	19	4.7	3.0×
fuel and exhaust	19	4.7	2.3×
structure and attachments	18	4.4	1.4×
reg plates and vin	17	4.2	2.5×

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 beats 4 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 GN.

Pass rate by registration year

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

Best year to buy used: 2002 (78.4% pass). Weakest: 1996 (64.9%).

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 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GN reliable?

The SUZUKI GN is about average for its class: 74.6% of its 1,027 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4347 of 5426 models.

What does a GN fail its MOT on most?

lighting and signalling — 27% of all defects recorded against failed GN tests.

What is the best year of GN to buy used?

By first-time pass rate, 2002-registered examples do best (78.4%) and 1996 worst (64.9%). Condition and history still trump the year.

How many miles will a GN last?

The median GN shows 18,233 miles at test, and examples around 40k miles still pass 66.7% of the time — mileage alone rarely kills one.