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

APRILIA RX50

50cc Petrol Class 1
50.3%
first-time pass rate
40.4%
failed outright
13,010
median miles at test
3,525
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The RX50's first-time pass rate has risen 25.7 points since 2005, 47.8% to 73.5%.

35%58%81%2005: 47.8% pass (67 tests)2006: 56.4% pass (266 tests)2007: 46.9% pass (311 tests)2008: 49.3% pass (341 tests)2009: 49.3% pass (343 tests)2010: 48.9% pass (325 tests)2011: 48.5% pass (307 tests)2012: 44.2% pass (269 tests)2013: 46.8% pass (233 tests)2014: 50.4% pass (228 tests)2015: 49.7% pass (177 tests)2016: 52.7% pass (146 tests)2017: 55.3% pass (103 tests)2018: 57.1% pass (70 tests)2019: 57.4% pass (61 tests)2020: 42.9% pass (49 tests)2021: 58.9% pass (56 tests)2022: 51.9% pass (54 tests)2023: 60.5% pass (43 tests)2024: 64.3% pass (42 tests)2025: 73.5% pass (34 tests)20052025

Pass rate by mileage

how the RX50's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage RX50 passes first time 56.6% of the time; by 40k that's 36.6%.

33%47%61%0k: 56.6% pass (1,117 tests)10k: 47.7% pass (1,071 tests)20k: 49.7% pass (521 tests)30k: 42.5% pass (207 tests)40k: 36.6% pass (41 tests)0k20k40k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a RX50

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
2,607 40.6 7.3×
steering and suspension
1,184 18.5 6.6×
brakes
983 15.3 4.1×
drive system
514 8 14.0×
tyres and wheels
357 5.6 3.9×
fuel and exhaust
205 3.2 6.7×
lamps and reflectors
202 3.1 1.5×
body and structure
180 2.8 7.4×
reg plates and vin
98 1.5 4.3×
structure and attachments
86 1.3 2.0×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the RX50 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 RX50.

Pass rate by registration year

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

Best year to buy used: 2009 (60.6% pass). Weakest: 2000 (44.5%).

41%53%64%1998: 45.2% pass (155 tests)1999: 52.3% pass (149 tests)2000: 44.5% pass (220 tests)2001: 50.2% pass (257 tests)2002: 49.8% pass (221 tests)2003: 51.1% pass (603 tests)2004: 49.7% pass (571 tests)2005: 49.5% pass (549 tests)2006: 49.8% pass (241 tests)2007: 52.6% pass (116 tests)2008: 45.5% pass (123 tests)2009: 60.6% pass (99 tests)2010: 56.0% pass (84 tests)2011: 57.1% pass (77 tests)199820052011

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.

APRILIA RX50 FAQ

answers computed from the data above · terms in the glossary

Is the APRILIA RX50 reliable?

The APRILIA RX50 is less reliable than average for its class: 50.3% of its 3,525 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5392 of 5426 models.

What does a RX50 fail its MOT on most?

lighting and signalling — 41% of all defects recorded against failed RX50 tests.

What is the best year of RX50 to buy used?

By first-time pass rate, 2009-registered examples do best (60.6%) and 2000 worst (44.5%). Condition and history still trump the year.

How many miles will a RX50 last?

The median RX50 shows 13,010 miles at test, and examples around 40k miles still pass 36.6% of the time — mileage alone rarely kills one.