HONDA SJ100

101cc Petrol Class 1

#4265 of 5426 overall #819 of 921 HONDAs #223 of 734 commuter bikes

75.3%

first-time pass rate

17.3%

failed outright

11,483

median miles at test

1,225

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2016

The SJ100's first-time pass rate has fallen 9.3 points since 2005, 76.9% to 67.6%.

Pass rate by mileage

how the SJ100's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage SJ100 passes first time 82.4% 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 SJ100

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	165	32.5	2.0×
lighting and signalling	127	25	1.5×
tyres and wheels	104	20.5	3.8×
steering and suspension	61	12	1.3×
fuel and exhaust	24	4.7	2.3×
reg plates and vin	8	1.6	1.0×
body and structure	6	1.2	1.0×
lamps and reflectors	5	1	0.2×
Identification of the vehicle	4	0.8	1.4×
suspension	3	0.6	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 SJ100 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 SJ100.

Pass rate by registration year

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

Best year to buy used: 1996 (77.2% pass). Weakest: 1998 (73.2%).

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.

HONDA SJ100 FAQ

answers computed from the data above · terms in the glossary

Is the HONDA SJ100 reliable?

The HONDA SJ100 is about average for its class: 75.3% of its 1,225 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4265 of 5426 models.

What does a SJ100 fail its MOT on most?

brakes — 33% of all defects recorded against failed SJ100 tests.

What is the best year of SJ100 to buy used?

By first-time pass rate, 1996-registered examples do best (77.2%) and 1998 worst (73.2%). Condition and history still trump the year.

How many miles will a SJ100 last?

The median SJ100 shows 11,483 miles at test, and examples around 30k miles still pass 64.1% of the time — mileage alone rarely kills one.