HONDA H 100 SG

98cc Petrol Class 1

77.4%

first-time pass rate

15.1%

failed outright

20,420

median miles at test

146

MOT tests, 2005–2025

Pass rate by mileage

how the H 100 SG's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage H 100 SG passes first time 81.7% of the time; by 30k that's 89.2%.

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 H 100 SG

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	42	53.2
steering and suspension	18	22.8
brakes	11	13.9
tyres and wheels	2	2.5
drive system	2	2.5
fuel and exhaust	2	2.5
reg plates and vin	1	1.3
body and structure	1	1.3

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 H 100 SG beats 3 of its 4 closest rivals (YAMAHA YBR 125, HONDA C90, HONDA CG125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA C90 79.3% pass · 92.8k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k 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 H 100 SG.

Pass rate by registration year

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

Best year to buy used: 1987 (78.8% pass). Weakest: 1987 (78.8%).

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.