Z Y MOTOR ZY 50 QT-7

49cc Petrol Class 1

#5226 of 5426 overall #1 of 1 Z Y MOTORs #384 of 455 moped bikes

59.6%

first-time pass rate

31.1%

failed outright

4,046

median miles at test

527

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2007–2013

The ZY 50 QT-7's first-time pass rate has fallen 3.6 points since 2007, 57.9% to 54.3%.

What fails on a ZY 50 QT-7

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	154	32.5	4.4×
brakes	149	31.4	4.5×
steering and suspension	115	24.3	4.8×
body and structure	18	3.8	5.1×
tyres and wheels	16	3.4	1.5×
fuel and exhaust	7	1.5	1.5×
lamps and reflectors	4	0.8	0.2×
suspension	4	0.8	0.3×
reg plates and vin	4	0.8	1.0×
driving controls	3	0.6	2.4×

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 ZY 50 QT-7 beats 0 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

PEUGEOT SPEEDFIGHT 65.2% pass · 83.7k tests PIAGGIO ZIP 71.3% pass · 79.0k tests PIAGGIO NRG 65.5% pass · 40.5k tests PEUGEOT VIVACITY 70.4% pass · 29.7k 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 ZY 50 QT-7.

Pass rate by registration year

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

Best year to buy used: 2004 (63.2% pass). Weakest: 2006 (57.9%).

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.

Z Y MOTOR ZY 50 QT-7 FAQ

answers computed from the data above · terms in the glossary

Is the Z Y MOTOR ZY 50 QT-7 reliable?

The Z Y MOTOR ZY 50 QT-7 is less reliable than average for its class: 59.6% of its 527 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5226 of 5426 models.

What does a ZY 50 QT-7 fail its MOT on most?

lighting and signalling — 32% of all defects recorded against failed ZY 50 QT-7 tests.

What is the best year of ZY 50 QT-7 to buy used?

By first-time pass rate, 2004-registered examples do best (63.2%) and 2006 worst (57.9%). Condition and history still trump the year.