SYM Symphony 125
Real ownership data from 1,869 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 |
|---|---|---|
| Steering and head bearings | dangerous | 12.2% |
| Brakes | fail | 12% |
| Tyres | fail | 11.5% |
| Brake discs and pads | major | 9.5% |
| Suspension | fail | 8.4% |
| Other | fail | 6.7% |
| Wheels | dangerous | 4.2% |
| Controls and cables | dangerous | 3.1% |
Advisories (wear noted but not failed) are excluded above; the most common is controls and cables.
Symphony 125 mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| YearYear | MedianMedian mileage | Mi/yrMiles/year | MOT passFirst-time pass | |
|---|---|---|---|---|
| 2026 | 26 | — | — | — |
| 2025 | 33 | — | — | — |
| 2024 | 72 | 2,136 mi | — | 100% |
| 2023 | 65 | 6,303 mi | 480 | 76.92% |
| 2022 | 125 | 8,843 mi | 2,123 | 75.42% |
| 2021 | 136 | 9,422 mi | 1,791 | 77.66% |
| 2020 | 65 | 7,860 mi | 1,720 | 83.02% |
| 2019 | 97 | 10,340 mi | 2,211 | 80.75% |
| 2018 | 128 | 11,269 mi | 2,058 | 81.57% |
| 2017 | 115 | 13,661 mi | 1,836 | 82.23% |
| 2016 | 176 | 9,426 mi | 1,696 | 79.08% |
| 2015 | 146 | 11,385 mi | 1,524 | 79.45% |
| 2014 | 96 | 16,192 mi | 3,492 | 78.57% |
| 2013 | 148 | 14,576 mi | 1,855 | 78.3% |
| 2012 | 128 | 10,014 mi | 2,596 | 84.95% |
| 2011 | 198 | 13,177 mi | 1,218 | 81.87% |
| 2010 | 77 | 12,637 mi | 1,468 | 78.99% |
| 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 1,869 UK examples, the most frequently recorded MOT faults are steering and head bearings (12.2% of all recorded faults), brakes (12% of all recorded faults), tyres (11.5% of all recorded faults).
What is average mileage for a SYM Symphony 125?
The median SYM Symphony 125 in the UK has covered 10,952 miles, and typically rides about 1,908 miles a year. Half of all examples fall between 5,906 and 19,535 miles.
Is the SYM Symphony 125 reliable?
80.75% of SYM Symphony 125 MOT tests are passed first time, with an average of 0.12 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 1,869 SYM Symphony 125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.