AJS JS 125-6C

124cc Petrol Class 1

#4673 of 5426 overall #26 of 45 AJSs #349 of 734 commuter bikes

70.8%

first-time pass rate

20.8%

failed outright

9,837

median miles at test

216

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2016–2017

The JS 125-6C's first-time pass rate has fallen 12.8 points since 2016, 79.5% to 66.7%.

What fails on a JS 125-6C

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	34	30.4
lighting and signalling	14	12.5
structure and attachments	13	11.6
brakes	13	11.6
tyres	10	8.9
steering and suspension	8	7.1
suspension	7	6.2
steering	6	5.4
drive system	4	3.6
tyres and wheels	3	2.7

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 JS 125-6C 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 JS 125-6C.

Pass rate by registration year

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

Best year to buy used: 2013 (78.1% pass). Weakest: 2012 (63.2%).

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.