SFM ZZ

124cc Petrol Class 1

#5330 of 5426 overall #1 of 1 SFMs #689 of 734 commuter bikes

55.6%

first-time pass rate

34.2%

failed outright

5,658

median miles at test

234

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2019–2022

The ZZ's first-time pass rate has risen 9.7 points since 2019, 52.8% to 62.5%.

What fails on a ZZ

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	88	28.9
brakes	61	20
structure and attachments	59	19.3
suspension	47	15.4
lighting and signalling	16	5.2
steering	10	3.3
Identification of the vehicle	6	2
audible warning (Horn)	6	2
drive system	6	2
steering and suspension	6	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 ZZ beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k 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 ZZ.

Pass rate by registration year

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

Best year to buy used: 2015 (72.0% pass). Weakest: 2016 (46.8%).

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.