BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

APRILIA SX50

49cc Petrol Class 1
56.2%
first-time pass rate
32.2%
failed outright
10,804
median miles at test
370
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2012–2016

The SX50's first-time pass rate has risen 3.7 points since 2012, 58.8% to 62.5%.

48%57%67%2012: 58.8% pass (34 tests)2013: 51.1% pass (45 tests)2014: 58.5% pass (41 tests)2015: 63.8% pass (47 tests)2016: 62.5% pass (32 tests)20122016

What fails on a SX50

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
164 36.5
steering and suspension
69 15.4
brakes
55 12.2
lamps and reflectors
54 12
drive system
42 9.4
structure and attachments
19 4.2
suspension
16 3.6
tyres and wheels
14 3.1
body and structure
9 2
audible warning (Horn)
7 1.6

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 SX50 beats 0 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

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 SX50.

Pass rate by registration year

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

Best year to buy used: 2007 (64.4% pass). Weakest: 2009 (50.9%).

48%58%67%2007: 64.4% pass (73 tests)2008: 58.3% pass (115 tests)2009: 50.9% pass (112 tests)200720082009

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.