Aprilia SX 125
Real ownership data from 822 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 | major | 15.5% |
| Brakes | fail | 10.5% |
| Suspension | dangerous | 8.2% |
| Controls and cables | major | 7.3% |
| Brake discs and pads | fail | 6.8% |
| Steering and head bearings | dangerous | 6.8% |
| Chain and sprockets | dangerous | 5.9% |
| Tyres | fail | 4.1% |
Advisories (wear noted but not failed) are excluded above; the most common is fluid leaks.
SX 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 | 91 | — | — | — |
| 2025 | 69 | — | — | — |
| 2024 | 98 | 921 mi | — | 100% |
| 2023 | 143 | 5,120 mi | 637 | 66.67% |
| 2022 | 196 | 5,982 mi | 966 | 70.63% |
| 2021 | 149 | 7,243 mi | 1,720 | 67.46% |
| 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 822 UK examples, the most frequently recorded MOT faults are lights and indicators (15.5% of all recorded faults), brakes (10.5% of all recorded faults), suspension (8.2% of all recorded faults).
What is average mileage for a Aprilia SX 125?
The median Aprilia SX 125 in the UK has covered 6,710 miles, and typically rides about 1,365 miles a year. Half of all examples fall between 3,574 and 9,991 miles.
Is the Aprilia SX 125 reliable?
65.53% of Aprilia SX 125 MOT tests are passed first time, with an average of 0.32 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 822 Aprilia SX 125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.