BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
76.1%
first-time pass rate
14.6%
failed outright
12,886
median miles at test
1,608
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2017–2025

The AZ's first-time pass rate has fallen 11.9 points since 2017, 80.4% to 68.5%.

63%73%84%2017: 80.4% pass (179 tests)2018: 78.9% pass (180 tests)2019: 74.4% pass (223 tests)2020: 76.3% pass (224 tests)2021: 72.8% pass (239 tests)2022: 78.6% pass (196 tests)2023: 78.9% pass (171 tests)2024: 66.3% pass (89 tests)2025: 68.5% pass (89 tests)20172025

Pass rate by mileage

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

A low-mileage AZ passes first time 85.8% of the time; by 40k that's 74.2%.

58%74%90%0k: 85.8% pass (583 tests)10k: 73.4% pass (579 tests)20k: 62.4% pass (274 tests)30k: 72.7% pass (77 tests)40k: 74.2% pass (31 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 AZ

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
172 32 1.6×
lamps and reflectors
140 26 3.9×
tyres
78 14.5 5.7×
suspension
48 8.9 3.0×
steering
31 5.8 4.3×
structure and attachments
22 4.1 1.9×
lighting and signalling
19 3.5 0.2×
tyres and wheels
12 2.2 0.3×
steering and suspension
11 2 0.2×
audible warning (Horn)
5 0.9 1.7×

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 AZ beats 0 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

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 AZ.

Pass rate by registration year

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

Best year to buy used: 2013 (80.3% pass). Weakest: 2015 (73.6%).

72%77%82%2013: 80.3% pass (157 tests)2014: 76.5% pass (690 tests)2015: 73.6% pass (296 tests)2016: 74.5% pass (392 tests)201320152016

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.

SYM AZ FAQ

answers computed from the data above · terms in the glossary

Is the SYM AZ reliable?

The SYM AZ is more reliable than average for its class: 76.1% of its 1,608 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4171 of 5426 models.

What does a AZ fail its MOT on most?

brakes — 32% of all defects recorded against failed AZ tests.

What is the best year of AZ to buy used?

By first-time pass rate, 2013-registered examples do best (80.3%) and 2015 worst (73.6%). Condition and history still trump the year.

How many miles will a AZ last?

The median AZ shows 12,886 miles at test, and examples around 40k miles still pass 74.2% of the time — mileage alone rarely kills one.