HYOSUNG SD50

49cc Petrol Class 1

#4763 of 5426 overall #8 of 23 HYOSUNGs #250 of 455 moped bikes

69.6%

first-time pass rate

23.9%

failed outright

5,604

median miles at test

293

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2007

The SD50's first-time pass rate has risen 7.8 points since 2006, 71.7% to 79.5%.

What fails on a SD50

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	66	31.3
brakes	54	25.6
steering and suspension	30	14.2
fuel and exhaust	19	9
tyres and wheels	16	7.6
lamps and reflectors	15	7.1
reg plates and vin	4	1.9
suspension	3	1.4
body and structure	3	1.4
wheels	1	0.5

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 SD50 beats 2 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 SD50.

Pass rate by registration year

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

Best year to buy used: 2000 (82.6% pass). Weakest: 2001 (66.1%).

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.