JIANSHE JS

124cc Petrol Class 1

#5036 of 5426 overall #1 of 2 JIANSHEs #530 of 734 commuter bikes

64.5%

first-time pass rate

24.6%

failed outright

8,902

median miles at test

211

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2017–2019

The JS's first-time pass rate has risen 2.4 points since 2017, 65.3% to 67.7%.

What fails on a JS

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	37	25.9
brakes	24	16.8
structure and attachments	22	15.4
suspension	16	11.2
lighting and signalling	13	9.1
tyres	9	6.3
steering and suspension	9	6.3
steering	6	4.2
drive system	4	2.8
audible warning (Horn)	3	2.1

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 JS 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.

Pass rate by registration year

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

Best year to buy used: 2014 (63.2% pass). Weakest: 2014 (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.