Triumph Street Twin
Real ownership data from 2,950 UK Street Twin motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common Street Twin problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Lights and indicators | dangerous | 9.1% |
| Wheels | major | 5.1% |
| Brake discs and pads | dangerous | 4% |
| Electrical | major | 4% |
| Fuel system | prs | 3% |
| Suspension | dangerous | 3% |
| Controls and cables | major | 3% |
| Tyres | dangerous | 3% |
Advisories (wear noted but not failed) are excluded above; the most common is corrosion.
Street Twin 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 | |
|---|---|---|---|---|
| 2023 | 16 | 4,215 mi | — | 100% |
| 2022 | 348 | 4,531 mi | 904 | 92.24% |
| 2021 | 400 | 5,486 mi | 806 | 93.79% |
| 2020 | 228 | 5,874 mi | 732 | 92.2% |
| 2019 | 429 | 7,050 mi | 820 | 91.35% |
| 2018 | 676 | 7,346 mi | 754 | 90.15% |
| 2017 | 724 | 8,148 mi | 757 | 90.36% |
| 2016 | 117 | 8,628 mi | 795 | 89.04% |
| 2015 | 7 | 6,190 mi | 582 | 100% |
Street Twin questions, answered with data
What are the most common problems with the Triumph Street Twin?
Across 2,950 UK examples, the most frequently recorded MOT faults are lights and indicators (9.1% of all recorded faults), wheels (5.1% of all recorded faults), brake discs and pads (4% of all recorded faults).
What is average mileage for a Triumph Street Twin?
The median Triumph Street Twin in the UK has covered 6,767 miles, and typically rides about 784 miles a year. Half of all examples fall between 3,942 and 10,767 miles.
Is the Triumph Street Twin reliable?
90.91% of Triumph Street Twin MOT tests are passed first time, with an average of 0.01 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 2,950 Triumph Street Twin motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.