SYM JD05W JET 4 R 50

49cc Petrol Class 1

79.7%

first-time pass rate

15.8%

failed outright

7,230

median miles at test

133

MOT tests, 2005–2025

What fails on a JD05W JET 4 R 50

failure defects by component group · advisories excluded

Component group	Defects	% of defects
brakes	18	32.1
lighting and signalling	12	21.4
driving controls	5	8.9
suspension	5	8.9
steering and suspension	4	7.1
fuel and exhaust	4	7.1
tyres and wheels	2	3.6
lamps and reflectors	2	3.6
structure and attachments	2	3.6
audible warning (Horn)	2	3.6

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 JD05W JET 4 R 50 beats 4 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

PEUGEOT SPEEDFIGHT 65.2% pass · 83.7k tests PIAGGIO ZIP 71.3% pass · 79.0k tests PIAGGIO NRG 65.5% pass · 40.5k tests PEUGEOT VIVACITY 70.4% pass · 29.7k 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 JD05W JET 4 R 50.

Pass rate by registration year

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

Best year to buy used: 2013 (79.8% pass). Weakest: 2013 (79.8%).

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.