Triumph Speed 400 problems
Owners have filed 25 complaints about the Triumph Speed 400 with NHTSA across model years 2024 to 2025. More of them are about the engine & cooling than anything else.
Every Triumph Speed 400 year, graded
The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.
What breaks on a Triumph Speed 400
Across every model year on file. Follow a row for that part's complaints and the year it was worst.
Worst in 2024
Worst in 2024
Worst in 2024
Worst in 2025
Worst in 2024
Worst in 2025
Complaints filed over time
Every complaint about every Triumph Speed 400, by the month it reached NHTSA.
Compare the Triumph Speed 400
Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.