BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SYM/AZ SYMPHONY SR 125
Model report · 2005–2025

SYM AZ SYMPHONY SR 125

125cc Petrol Class 1
79.8%
first-time pass rate
13.5%
failed outright
13,465
median miles at test
702
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2015–2022

The AZ SYMPHONY SR 125's first-time pass rate has fallen 16.0 points since 2015, 91.0% to 75.0%.

66%81%96%2015: 91.0% pass (78 tests)2016: 77.8% pass (158 tests)2017: 84.4% pass (122 tests)2018: 82.3% pass (62 tests)2019: 71.2% pass (59 tests)2020: 76.1% pass (46 tests)2021: 73.7% pass (57 tests)2022: 75.0% pass (36 tests)20152022

Pass rate by mileage

how the AZ SYMPHONY SR 125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage AZ SYMPHONY SR 125 passes first time 87.0% of the time; by 30k that's 67.4%.

63%77%91%0k: 87.0% pass (261 tests)10k: 78.5% pass (237 tests)20k: 72.7% pass (132 tests)30k: 67.4% pass (43 tests)0k20k30k

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 SYMPHONY SR 125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
61 29.8 1.4×
lamps and reflectors
34 16.6 2.0×
lighting and signalling
27 13.2 0.6×
tyres
25 12.2 4.6×
tyres and wheels
14 6.8 1.0×
steering and suspension
12 5.9 0.4×
structure and attachments
11 5.4 1.9×
steering
9 4.4 3.1×
suspension
8 3.9 1.4×
audible warning (Horn)
4 2 3.1×

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 SYMPHONY SR 125 beats 1 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 SYMPHONY SR 125.

Pass rate by registration year

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

Best year to buy used: 2012 (84.6% pass). Weakest: 2013 (75.8%).

74%80%86%2011: 83.3% pass (96 tests)2012: 84.6% pass (246 tests)2013: 75.8% pass (343 tests)201120122013

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 SYMPHONY SR 125 FAQ

answers computed from the data above · terms in the glossary

Is the SYM AZ SYMPHONY SR 125 reliable?

The SYM AZ SYMPHONY SR 125 is more reliable than average for its class: 79.8% of its 702 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3626 of 5426 models.

What does a AZ SYMPHONY SR 125 fail its MOT on most?

brakes — 30% of all defects recorded against failed AZ SYMPHONY SR 125 tests.

What is the best year of AZ SYMPHONY SR 125 to buy used?

By first-time pass rate, 2012-registered examples do best (84.6%) and 2013 worst (75.8%). Condition and history still trump the year.

How many miles will a AZ SYMPHONY SR 125 last?

The median AZ SYMPHONY SR 125 shows 13,465 miles at test, and examples around 30k miles still pass 67.4% of the time — mileage alone rarely kills one.