SYM Symphony 125
Real ownership data from 1,865 UK Symphony 125 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common Symphony 125 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Lights and indicators | major | 10.3% |
| Brake discs and pads | dangerous | 4.2% |
| Brakes | major | 4.2% |
| Tyres | dangerous | 4.1% |
| Suspension | dangerous | 2.3% |
| Steering and head bearings | major | 1.4% |
| Other | dangerous | 0.8% |
| Exhaust and emissions | major | 0.6% |
Advisories (wear noted but not failed) are excluded above; the most common is brakes.
Symphony 125 mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| Year | Examples | Median mileage | Miles/year | First-time pass |
|---|---|---|---|---|
| 2026 | 21 | — | — | — |
| 2025 | 33 | — | — | — |
| 2024 | 72 | 2,136 mi | — | 100% |
| 2023 | 65 | 6,222 mi | — | 75% |
| 2022 | 125 | 8,612 mi | 2,280 | 74.11% |
| 2021 | 136 | 9,183 mi | 1,904 | 78.09% |
| 2020 | 65 | 7,860 mi | 1,581 | 82.35% |
| 2019 | 97 | 10,340 mi | 2,022 | 80.22% |
| 2018 | 128 | 11,101 mi | 2,088 | 81.39% |
| 2017 | 115 | 13,346 mi | 1,836 | 82.04% |
| 2016 | 176 | 9,426 mi | 1,696 | 78.85% |
| 2015 | 146 | 11,385 mi | 1,524 | 79.28% |
| 2014 | 96 | 16,192 mi | 3,492 | 78.18% |
| 2013 | 148 | 14,576 mi | 1,855 | 78.3% |
| 2012 | 128 | 10,014 mi | 2,596 | 84.88% |
| 2011 | 199 | 13,010 mi | 1,218 | 82.41% |
| 2010 | 77 | 12,637 mi | 1,468 | 78.93% |
| 2009 | 38 | 10,862 mi | 2,268 | 82.86% |
Symphony 125 questions, answered with data
What are the most common problems with the SYM Symphony 125?
Across 1,865 UK examples, the most frequently recorded MOT faults are lights and indicators (10.3% of all recorded faults), brake discs and pads (4.2% of all recorded faults), brakes (4.2% of all recorded faults).
What is average mileage for a SYM Symphony 125?
The median SYM Symphony 125 in the UK has covered 10,862 miles, and typically rides about 1,885 miles a year. Half of all examples fall between 5,863 and 19,644 miles.
Is the SYM Symphony 125 reliable?
80.71% of SYM Symphony 125 MOT tests are passed first time, with an average of 1.01 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 1,865 SYM Symphony 125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.