ZONTES ZT 125-5A MONSTER

125cc Petrol Class 1

#5286 of 5426 overall #11 of 11 ZONTESs #205 of 205 naked bikes

57.6%

first-time pass rate

32.6%

failed outright

9,587

median miles at test

264

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2015–2017

The ZT 125-5A MONSTER's first-time pass rate has fallen 14.9 points since 2015, 64.9% to 50.0%.

What fails on a ZT 125-5A MONSTER

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	81	25.4
brakes	61	19.1
drive system	48	15
steering and suspension	40	12.5
lamps and reflectors	29	9.1
structure and attachments	29	9.1
suspension	9	2.8
fuel and exhaust	8	2.5
body and structure	7	2.2
steering	7	2.2

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 ZT 125-5A MONSTER beats 0 of its 1 closest rivals (HONDA CB125F).

HONDA CB125F 81.2% pass · 30.6k 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 125-5A MONSTER.

Pass rate by registration year

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

Best year to buy used: 2013 (60.2% pass). Weakest: 2012 (53.3%).

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.