SYM AY12W SYMPHONY 125

125cc Petrol Class 1

84.3%

first-time pass rate

10.5%

failed outright

13,405

median miles at test

172

MOT tests, 2005–2025

Pass rate by mileage

how the AY12W SYMPHONY 125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage AY12W SYMPHONY 125 passes first time 95.4% of the time; by 20k that's 77.1%.

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 AY12W SYMPHONY 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects
brakes	8	27.6
lighting and signalling	5	17.2
tyres and wheels	4	13.8
steering and suspension	4	13.8
fuel and exhaust	2	6.9
lamps and reflectors	2	6.9
drive system	1	3.4
steering	1	3.4
Identification of the vehicle	1	3.4
structure and attachments	1	3.4

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 AY12W SYMPHONY 125 beats 4 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

PIAGGIO VESPA 80.7% pass · 287k tests HONDA PCX 125 81.1% pass · 88.6k tests HONDA Vision 110 78.2% pass · 50.6k tests YAMAHA NMAX 125 82.2% pass · 33.8k tests

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 AY12W SYMPHONY 125.

Pass rate by registration year

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

Best year to buy used: 2011 (80.0% pass). Weakest: 2011 (80.0%).

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.