ZONTES ZT 125-U

125cc Petrol Class 1

#4363 of 5426 overall #3 of 11 ZONTESs #250 of 734 commuter bikes

74.4%

first-time pass rate

15.7%

failed outright

6,232

median miles at test

332

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2024–2025

The ZT 125-U's first-time pass rate has fallen 7.2 points since 2024, 79.0% to 71.8%.

What fails on a ZT 125-U

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	37	30.8
brakes	32	26.7
structure and attachments	25	20.8
suspension	16	13.3
tyres	4	3.3
steering	3	2.5
audible warning (Horn)	2	1.7
wheels	1	0.8

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 ZT 125-U beats 4 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 ZT 125-U.

Pass rate by registration year

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

Best year to buy used: 2021 (74.0% pass). Weakest: 2022 (73.9%).

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.