SKYJET SJ

125cc Petrol Class 1

#5392 of 5426 overall #1 of 2 SKYJETs #717 of 734 commuter bikes

50.3%

first-time pass rate

39.8%

failed outright

5,389

median miles at test

374

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2017–2021

The SJ's first-time pass rate has fallen 14.6 points since 2017, 56.1% to 41.5%.

What fails on a SJ

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	127	23.8
brakes	124	23.2
structure and attachments	79	14.8
suspension	46	8.6
lighting and signalling	38	7.1
steering and suspension	33	6.2
tyres	31	5.8
steering	27	5.1
tyres and wheels	17	3.2
drive system	12	2.2

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 SJ 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 SJ.

Pass rate by registration year

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

Best year to buy used: 2014 (57.6% pass). Weakest: 2015 (52.4%).

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.