HONDA C90C

89cc Petrol Class 1

80.2%

first-time pass rate

7.5%

failed outright

25,830

median miles at test

187

MOT tests, 2005–2025

Pass rate by mileage

how the C90C's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage C90C passes first time 73.3% of the time; by 40k that's 87.1%.

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 C90C

failure defects by component group · advisories excluded

Component group	Defects	% of defects
steering and suspension	7	24.1
lighting and signalling	5	17.2
tyres and wheels	4	13.8
brakes	3	10.3
lamps and reflectors	3	10.3
body and structure	3	10.3
suspension	1	3.4
tyres	1	3.4
drive system	1	3.4
audible warning (Horn)	1	3.4

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the C90C beats 4 of its 4 closest rivals (HONDA C90, HONDA SCV100, YAMAHA XC).

HONDA C90 79.3% pass · 92.8k tests HONDA SCV100 70.7% pass · 31.3k tests YAMAHA XC 79.7% pass · 9,855 tests YAMAHA YQ100 64.7% pass · 7,747 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 C90C.

Pass rate by registration year

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

Best year to buy used: 1983 (88.7% pass). Weakest: 1996 (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.