HONDA C90MG

85cc Petrol Class 1

#4363 of 5426 overall #832 of 921 HONDAs #250 of 734 commuter bikes

74.4%

first-time pass rate

15.0%

failed outright

20,022

median miles at test

673

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2015

The C90MG's first-time pass rate has risen 8.1 points since 2005, 76.3% to 84.4%.

Pass rate by mileage

how the C90MG's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage C90MG passes first time 79.1% of the time; by 30k that's 64.1%.

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 C90MG

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	78	25.6	1.5×
steering and suspension	76	24.9	2.3×
brakes	51	16.7	1.3×
tyres and wheels	44	14.4	2.8×
drive system	17	5.6	3.1×
body and structure	16	5.2	4.6×
reg plates and vin	7	2.3	1.6×
suspension	6	2	0.4×
fuel and exhaust	5	1.6	1.0×
lamps and reflectors	5	1.6	0.2×

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 C90MG beats 2 of its 4 closest rivals (HONDA C90, HONDA SCV100, YAMAHA YQ100).

HONDA C90 79.3% pass · 92.8k tests HONDA SCV100 70.7% pass · 31.3k tests YAMAHA YQ100 64.7% pass · 7,747 tests HONDA NHX 110 WH-8 80.4% pass · 7,740 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 C90MG.

Pass rate by registration year

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

Best year to buy used: 1989 (83.1% pass). Weakest: 1993 (65.1%).

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 C90MG FAQ

answers computed from the data above · terms in the glossary

Is the HONDA C90MG reliable?

The HONDA C90MG is about average for its class: 74.4% of its 673 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4363 of 5426 models.

What does a C90MG fail its MOT on most?

lighting and signalling — 26% of all defects recorded against failed C90MG tests.

What is the best year of C90MG to buy used?

By first-time pass rate, 1989-registered examples do best (83.1%) and 1993 worst (65.1%). Condition and history still trump the year.

How many miles will a C90MG last?

The median C90MG shows 20,022 miles at test, and examples around 30k miles still pass 64.1% of the time — mileage alone rarely kills one.