Triumph 3T
Real ownership data from 65 UK 3T motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common 3T problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Lights and indicators | fail | 15.8% |
| Brakes | fail | 13.2% |
| Other | fail | 7.9% |
| Suspension | fail | 4% |
| Exhaust and emissions | fail | 4% |
| Steering and head bearings | fail | 4% |
| Electrical | fail | 4% |
| Tyres | user entered | 4% |
Advisories (wear noted but not failed) are excluded above; the most common is suspension.
3T 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 |
|---|---|---|---|---|
| 1983 | 5 | 33,336 mi | 1,002 | 80.77% |
| 1951 | 5 | 7,761 mi | 141 | 93.75% |
| 1949 | 6 | 32,934 mi | 695 | 91.67% |
| 1948 | 10 | 4,476 mi | 58 | 100% |
| 1947 | 12 | 6,566 mi | 138 | 85.71% |
| 1946 | 6 | 11,200 mi | 263 | 100% |
3T questions, answered with data
What are the most common problems with the Triumph 3T?
Across 65 UK examples, the most frequently recorded MOT faults are lights and indicators (15.8% of all recorded faults), brakes (13.2% of all recorded faults), other (7.9% of all recorded faults).
What is average mileage for a Triumph 3T?
The median Triumph 3T in the UK has covered 6,496 miles, and typically rides about 112 miles a year. Half of all examples fall between 2,093 and 20,993 miles.
Is the Triumph 3T reliable?
92.51% of Triumph 3T 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 65 Triumph 3T motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.