JONWAY YY

124cc Petrol Class 1

#4783 of 5426 overall #1 of 1 JONWAYs #404 of 734 commuter bikes

69.3%

first-time pass rate

22.6%

failed outright

5,360

median miles at test

274

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2018–2021

The YY's first-time pass rate has fallen 1.9 points since 2018, 65.2% to 63.3%.

What fails on a YY

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	50	27
brakes	38	20.5
steering	24	13
suspension	23	12.4
lighting and signalling	14	7.6
structure and attachments	11	5.9
tyres	11	5.9
steering and suspension	7	3.8
audible warning (Horn)	5	2.7
tyres and wheels	2	1.1

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 YY 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 YY.

Pass rate by registration year

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

Best year to buy used: 2015 (67.6% pass). Weakest: 2015 (67.6%).

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.