HONDA CG 125-4

124cc Petrol Class 1

#4171 of 5426 overall #794 of 921 HONDAs #203 of 734 commuter bikes

76.1%

first-time pass rate

12.0%

failed outright

13,874

median miles at test

2,270

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2007–2025

The CG 125-4's first-time pass rate has fallen 12.9 points since 2007, 85.1% to 72.2%.

Pass rate by mileage

how the CG 125-4's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage CG 125-4 passes first time 81.4% of the time; by 50k that's 73.3%.

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 CG 125-4

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	129	20.6	0.9×
lighting and signalling	113	18	0.9×
tyres and wheels	76	12.1	1.5×
steering and suspension	68	10.8	0.8×
drive system	62	9.9	2.6×
structure and attachments	60	9.6	2.4×
lamps and reflectors	59	9.4	1.0×
suspension	25	4	1.2×
tyres	21	3.3	1.3×
body and structure	14	2.2	1.0×

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 CG 125-4 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 CG 125-4.

Pass rate by registration year

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

Best year to buy used: 2004 (77.7% pass). Weakest: 2007 (74.0%).

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.

HONDA CG 125-4 FAQ

answers computed from the data above · terms in the glossary

Is the HONDA CG 125-4 reliable?

The HONDA CG 125-4 is more reliable than average for its class: 76.1% of its 2,270 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4171 of 5426 models.

What does a CG 125-4 fail its MOT on most?

brakes — 21% of all defects recorded against failed CG 125-4 tests.

What is the best year of CG 125-4 to buy used?

By first-time pass rate, 2004-registered examples do best (77.7%) and 2007 worst (74.0%). Condition and history still trump the year.

How many miles will a CG 125-4 last?

The median CG 125-4 shows 13,874 miles at test, and examples around 50k miles still pass 73.3% of the time — mileage alone rarely kills one.