Triumph Street Twin
Real ownership data from 2,939 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 |
|---|---|---|
| Controls and cables | major | 14.8% |
| Exhaust and emissions | major | 11.5% |
| Lights and indicators | dangerous | 7.7% |
| Brakes | dangerous | 7.1% |
| Tyres | dangerous | 6.6% |
| Brake discs and pads | dangerous | 6% |
| Steering and head bearings | dangerous | 3.3% |
| Wheels | major | 2.7% |
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 | 347 | 4,422 mi | 891 | 92.6% |
| 2021 | 400 | 5,441 mi | 805 | 93.77% |
| 2020 | 228 | 5,617 mi | 746 | 92.02% |
| 2019 | 426 | 7,048 mi | 820 | 91.54% |
| 2018 | 673 | 7,287 mi | 760 | 90.21% |
| 2017 | 721 | 8,115 mi | 756 | 90.45% |
| 2016 | 116 | 8,616 mi | 795 | 89.56% |
| 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 2,939 UK examples, the most frequently recorded MOT faults are controls and cables (14.8% of all recorded faults), exhaust and emissions (11.5% of all recorded faults), lights and indicators (7.7% of all recorded faults).
What is average mileage for a Triumph Street Twin?
The median Triumph Street Twin in the UK has covered 6,729 miles, and typically rides about 784 miles a year. Half of all examples fall between 3,931 and 10,647 miles.
Is the Triumph Street Twin reliable?
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 2,939 Triumph Street Twin motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.