AJS YX-R 125

124cc Petrol Class 1

48.7%

first-time pass rate

36.8%

failed outright

6,633

median miles at test

193

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2011–2013

The YX-R 125's first-time pass rate has held steady since 2011 (39.5% → 39.4%).

What fails on a YX-R 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	129	41.6
steering and suspension	49	15.8
brakes	35	11.3
tyres and wheels	32	10.3
drive system	26	8.4
body and structure	16	5.2
lamps and reflectors	8	2.6
driving controls	6	1.9
fuel and exhaust	5	1.6
reg plates and vin	4	1.3

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 YX-R 125 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 YX-R 125.

Pass rate by registration year

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

Best year to buy used: 2008 (51.2% pass). Weakest: 2007 (44.0%).

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.