HYOSUNG SF50

49cc Petrol Class 1

#5313 of 5426 overall #22 of 23 HYOSUNGs #408 of 455 moped bikes

56.3%

first-time pass rate

35.4%

failed outright

8,783

median miles at test

240

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2008

The SF50's first-time pass rate has fallen 13.9 points since 2006, 61.1% to 47.2%.

What fails on a SF50

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	125	40.5
brakes	71	23
steering and suspension	64	20.7
tyres and wheels	13	4.2
fuel and exhaust	12	3.9
body and structure	8	2.6
reg plates and vin	7	2.3
Items Not Tested	4	1.3
driving controls	3	1
lamps and reflectors	2	0.6

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 SF50 beats 0 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 SF50.

Pass rate by registration year

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

Best year to buy used: 2000 (62.1% pass). Weakest: 2001 (51.5%).

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.