BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ YAMAHA/AEROX R
Model report · 2005–2025

YAMAHA AEROX R

49cc Petrol Class 1
79.5%
first-time pass rate
11.2%
failed outright
6,366
median miles at test
1,066
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2021–2025

The AEROX R's first-time pass rate has risen 1.4 points since 2021, 82.1% to 83.5%.

74%80%85%2021: 82.1% pass (95 tests)2022: 75.7% pass (218 tests)2023: 80.5% pass (292 tests)2024: 77.0% pass (235 tests)2025: 83.5% pass (212 tests)20212025

What fails on a AEROX R

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
133 51 4.2×
brakes
61 23.4 1.0×
tyres
20 7.7 2.2×
steering
12 4.6 2.7×
Identification of the vehicle
10 3.8 4.1×
structure and attachments
10 3.8 1.2×
suspension
9 3.4 1.1×
lighting and signalling
4 1.5
wheels
1 0.4 1.6×
audible warning (Horn)
1 0.4 0.5×

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 AEROX R beats 4 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 AEROX R.

Pass rate by registration year

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

Best year to buy used: 2020 (83.1% pass). Weakest: 2019 (75.9%).

74%80%85%2018: 80.8% pass (412 tests)2019: 75.9% pass (411 tests)2020: 83.1% pass (225 tests)201820192020

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.

YAMAHA AEROX R FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA AEROX R reliable?

The YAMAHA AEROX R is more reliable than average for its class: 79.5% of its 1,066 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3686 of 5426 models.

What does a AEROX R fail its MOT on most?

lamps and reflectors — 51% of all defects recorded against failed AEROX R tests.

What is the best year of AEROX R to buy used?

By first-time pass rate, 2020-registered examples do best (83.1%) and 2019 worst (75.9%). Condition and history still trump the year.