SUZUKI B120

118cc Petrol Class 1

#2611 of 5426 overall #320 of 680 SUZUKIs #27 of 734 commuter bikes

84.5%

first-time pass rate

7.4%

failed outright

15,492

median miles at test

432

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2017

The B120's first-time pass rate has fallen 4.3 points since 2006, 93.5% to 89.2%.

Pass rate by mileage

how the B120's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage B120 passes first time 88.9% of the time; by 20k that's 79.8%.

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 B120

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	42	48.8
tyres and wheels	17	19.8
steering and suspension	14	16.3
driving controls	5	5.8
body and structure	3	3.5
brakes	2	2.3
fuel and exhaust	1	1.2
reg plates and vin	1	1.2
drive system	1	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 B120 beats 4 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 B120.

Pass rate by registration year

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

Best year to buy used: 1976 (89.2% pass). Weakest: 1977 (77.0%).

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.