SUZUKI GZ 125 L0

124cc Petrol Class 1

#4697 of 5426 overall #643 of 680 SUZUKIs #365 of 734 commuter bikes

70.4%

first-time pass rate

20.0%

failed outright

7,559

median miles at test

744

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2013–2024

The GZ 125 L0's first-time pass rate has fallen 6.5 points since 2013, 70.4% to 63.9%.

Pass rate by mileage

how the GZ 125 L0's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GZ 125 L0 passes first time 78.1% of the time; by 20k that's 58.5%.

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 GZ 125 L0

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	85	23.3	2.1×
lighting and signalling	54	14.8	1.4×
lamps and reflectors	44	12.1	2.5×
steering and suspension	43	11.8	1.5×
drive system	37	10.1	5.4×
structure and attachments	28	7.7	3.5×
tyres and wheels	27	7.4	1.6×
tyres	22	6	3.7×
suspension	18	4.9	2.4×
reg plates and vin	7	1.9	1.4×

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 GZ 125 L0 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 GZ 125 L0.

Pass rate by registration year

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

Best year to buy used: 2011 (71.4% pass). Weakest: 2010 (69.2%).

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 GZ 125 L0 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GZ 125 L0 reliable?

The SUZUKI GZ 125 L0 is less reliable than average for its class: 70.4% of its 744 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4697 of 5426 models.

What does a GZ 125 L0 fail its MOT on most?

brakes — 23% of all defects recorded against failed GZ 125 L0 tests.

How many miles will a GZ 125 L0 last?

The median GZ 125 L0 shows 7,559 miles at test, and examples around 20k miles still pass 58.5% of the time — mileage alone rarely kills one.