Aprilia SX 125
Real ownership data from 802 UK SX 125 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common SX 125 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Lights and indicators | dangerous | 16.9% |
| Brakes | major | 3.8% |
| Brake discs and pads | dangerous | 3.7% |
| Chain and sprockets | major | 3.2% |
| Tyres | dangerous | 1.7% |
| Electrical | major | 1.5% |
| Suspension | dangerous | 1.3% |
| Controls and cables | major | 1% |
Advisories (wear noted but not failed) are excluded above; the most common is chain and sprockets.
SX 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 | 71 | — | — | — |
| 2025 | 69 | — | — | — |
| 2024 | 98 | 921 mi | — | 100% |
| 2023 | 143 | 5,315 mi | 1,467 | 66.67% |
| 2022 | 196 | 5,976 mi | 873 | 70.67% |
| 2021 | 149 | 7,218 mi | 1,819 | 68.5% |
| 2020 | 16 | 9,198 mi | 4,312 | 33.33% |
| 2019 | 23 | — | — | — |
| 2018 | 20 | — | — | — |
| 2010 | 5 | 8,089 mi | 571 | 65.38% |
| 2008 | 6 | 15,023 mi | 939 | 43.59% |
SX 125 questions, answered with data
What are the most common problems with the Aprilia SX 125?
Across 802 UK examples, the most frequently recorded MOT faults are lights and indicators (16.9% of all recorded faults), brakes (3.8% of all recorded faults), brake discs and pads (3.7% of all recorded faults).
What is average mileage for a Aprilia SX 125?
The median Aprilia SX 125 in the UK has covered 6,698 miles, and typically rides about 1,438 miles a year. Half of all examples fall between 3,574 and 10,018 miles.
Is the Aprilia SX 125 reliable?
65.81% of Aprilia SX 125 MOT tests are passed first time, with an average of 1.83 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 802 Aprilia SX 125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.