SYM SYMPHONY

125cc Petrol Class 1

#3686 of 5426 overall #19 of 78 SYMs #209 of 412 scooter bikes

79.5%

first-time pass rate

13.5%

failed outright

9,184

median miles at test

840

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2018–2025

The SYMPHONY's first-time pass rate has risen 14.9 points since 2018, 81.0% to 95.9%.

Pass rate by mileage

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

A low-mileage SYMPHONY passes first time 82.9% of the time; by 30k that's 79.5%.

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 SYMPHONY

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	70	27.2	1.3×
lamps and reflectors	66	25.7	3.5×
tyres	25	9.7	4.4×
suspension	22	8.6	2.7×
steering	19	7.4	5.4×
steering and suspension	17	6.6	0.2×
lighting and signalling	14	5.4	0.2×
structure and attachments	13	5.1	1.7×
audible warning (Horn)	6	2.3	3.9×
tyres and wheels	5	1.9	0.3×

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 SYMPHONY beats 1 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 SYMPHONY.

Pass rate by registration year

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

Best year to buy used: 2011 (84.5% pass). Weakest: 2010 (74.7%).

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 SYMPHONY FAQ

answers computed from the data above · terms in the glossary

Is the SYM SYMPHONY reliable?

The SYM SYMPHONY is more reliable than average for its class: 79.5% of its 840 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3686 of 5426 models.

What does a SYMPHONY fail its MOT on most?

brakes — 27% of all defects recorded against failed SYMPHONY tests.

What is the best year of SYMPHONY to buy used?

By first-time pass rate, 2011-registered examples do best (84.5%) and 2010 worst (74.7%). Condition and history still trump the year.

How many miles will a SYMPHONY last?

The median SYMPHONY shows 9,184 miles at test, and examples around 30k miles still pass 79.5% of the time — mileage alone rarely kills one.