GILERA DNA 125

124cc Petrol Class 1

#5024 of 5426 overall #16 of 28 GILERAs #523 of 734 commuter bikes

64.8%

first-time pass rate

29.3%

failed outright

7,576

median miles at test

974

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2009

The DNA 125's first-time pass rate has fallen 3.3 points since 2005, 68.5% to 65.2%.

What fails on a DNA 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
steering and suspension	295	34.2	6.1×
lighting and signalling	237	27.5	3.8×
brakes	107	12.4	1.8×
tyres and wheels	75	8.7	3.5×
body and structure	54	6.3	9.2×
fuel and exhaust	39	4.5	4.5×
Items Not Tested	19	2.2	15.6×
lamps and reflectors	15	1.7	0.5×
suspension	11	1.3	1.1×
reg plates and vin	10	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 DNA 125 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 DNA 125.

Pass rate by registration year

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

Best year to buy used: 2003 (69.4% pass). Weakest: 2001 (61.4%).

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.

GILERA DNA 125 FAQ

answers computed from the data above · terms in the glossary

Is the GILERA DNA 125 reliable?

The GILERA DNA 125 is less reliable than average for its class: 64.8% of its 974 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5024 of 5426 models.

What does a DNA 125 fail its MOT on most?

steering and suspension — 34% of all defects recorded against failed DNA 125 tests.

What is the best year of DNA 125 to buy used?

By first-time pass rate, 2003-registered examples do best (69.4%) and 2001 worst (61.4%). Condition and history still trump the year.