KIDEN ARIES KD 125-J

124cc Petrol Class 1

51.6%

first-time pass rate

32.3%

failed outright

4,146

median miles at test

MOT tests, 2005–2025

What fails on a ARIES KD 125-J

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	41	29.5
brakes	36	25.9
structure and attachments	28	20.1
suspension	12	8.6
steering	10	7.2
tyres	6	4.3
audible warning (Horn)	4	2.9
wheels	1	0.7
Identification of the vehicle	1	0.7

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 ARIES KD 125-J 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 ARIES KD 125-J.

Pass rate by registration year

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

Best year to buy used: 2017 (50.9% pass). Weakest: 2017 (50.9%).

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.