Mash FIFTY
Real ownership data from 271 UK FIFTY motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common FIFTY problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Lights and indicators | dangerous | 20.3% |
| Brakes | dangerous | 6.8% |
| Chain and sprockets | dangerous | 4.9% |
| Suspension | major | 3.1% |
| Controls and cables | dangerous | 2.7% |
| Steering and head bearings | dangerous | 1.7% |
| Exhaust and emissions | major | 1% |
| Electrical | major | 1% |
Advisories (wear noted but not failed) are excluded above; the most common is chain and sprockets.
FIFTY 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 | 17 | — | — | — |
| 2025 | 6 | — | — | — |
| 2024 | 10 | — | — | — |
| 2023 | 20 | 4,125 mi | — | 40% |
| 2022 | 30 | 3,688 mi | 1,138 | 82.61% |
| 2021 | 42 | 3,752 mi | 1,196 | 68.63% |
| 2018 | 58 | 5,472 mi | 1,478 | 64.66% |
| 2017 | 81 | 3,564 mi | 723 | 73.1% |
FIFTY questions, answered with data
What are the most common problems with the Mash FIFTY?
Across 271 UK examples, the most frequently recorded MOT faults are lights and indicators (20.3% of all recorded faults), brakes (6.8% of all recorded faults), chain and sprockets (4.9% of all recorded faults).
What is average mileage for a Mash FIFTY?
The median Mash FIFTY in the UK has covered 4,297 miles, and typically rides about 1,008 miles a year. Half of all examples fall between 1,932 and 7,389 miles.
Is the Mash FIFTY reliable?
70.63% of Mash FIFTY MOT tests are passed first time, with an average of 1.13 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 271 Mash FIFTY motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.