BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SYM/SYMPHONY 125
Model report · 2005–2025
79.0%
first-time pass rate
14.5%
failed outright
12,156
median miles at test
262
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2014–2017

The SYMPHONY 125's first-time pass rate has risen 5.3 points since 2014, 78.0% to 83.3%.

76%82%87%2014: 78.0% pass (41 tests)2015: 82.5% pass (40 tests)2016: 85.3% pass (34 tests)2017: 83.3% pass (30 tests)20142017

Pass rate by mileage

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

A low-mileage SYMPHONY 125 passes first time 84.8% of the time; by 20k that's 64.1%.

60%74%89%0k: 84.8% pass (112 tests)10k: 83.1% pass (71 tests)20k: 64.1% pass (39 tests)0k10k20k

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 125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
brakes
13 21.3
lighting and signalling
11 18
steering and suspension
10 16.4
tyres and wheels
10 16.4
lamps and reflectors
4 6.6
steering
3 4.9
suspension
3 4.9
tyres
3 4.9
reg plates and vin
2 3.3
audible warning (Horn)
2 3.3

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 SYMPHONY 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 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 (86.6% pass). Weakest: 2010 (70.2%).

67%78%90%2009: 78.6% pass (98 tests)2010: 70.2% pass (84 tests)2011: 86.6% pass (67 tests)200920102011

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.