HONDA CB100N

99cc Petrol Class 1

#4715 of 5426 overall #884 of 921 HONDAs #200 of 205 naked bikes

70.2%

first-time pass rate

18.3%

failed outright

19,420

median miles at test

218

MOT tests, 2005–2025

Pass rate by mileage

how the CB100N's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage CB100N passes first time 65.1% of the time; by 30k that's 76.2%.

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 CB100N

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	67	41.9
brakes	29	18.1
steering and suspension	25	15.6
tyres and wheels	14	8.8
drive system	9	5.6
body and structure	5	3.1
reg plates and vin	4	2.5
Items Not Tested	3	1.9
lamps and reflectors	2	1.2
driving controls	2	1.2

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 CB100N beats 0 of its 1 closest rivals (HONDA CB125F).

HONDA CB125F 81.2% pass · 30.6k 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 CB100N.

Pass rate by registration year

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

Best year to buy used: 1980 (69.4% pass). Weakest: 1979 (67.7%).

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.