APRILIA RS4 50

50cc Petrol Class 1

#4837 of 5426 overall #94 of 128 APRILIAs #265 of 455 moped bikes

68.3%

first-time pass rate

22.6%

failed outright

8,723

median miles at test

438

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2015–2021

The RS4 50's first-time pass rate has held steady since 2015 (71.7% → 71.4%).

What fails on a RS4 50

failure defects by component group · advisories excluded

Component group	Defects	% of defects
brakes	48	20.1
lighting and signalling	41	17.2
lamps and reflectors	37	15.5
structure and attachments	31	13
drive system	28	11.7
steering and suspension	21	8.8
suspension	10	4.2
tyres	9	3.8
tyres and wheels	7	2.9
audible warning (Horn)	7	2.9

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 RS4 50 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 RS4 50.

Pass rate by registration year

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

Best year to buy used: 2012 (71.4% pass). Weakest: 2011 (57.8%).

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.