What Triumph Street Twin owners have reported to NHTSA, the service bulletins the manufacturer sent dealers, and any federal defect investigations, by model year. See Triumph Street Twin safety recalls or check your VIN.
Complaints owners filed with NHTSA, by the model year of the vehicle. A high count can also mean a popular year, so compare it with how many were sold.
| Year | Complaints | Crashes | Fires | Injured | Deaths | TSBs |
|---|---|---|---|---|---|---|
| 2022 | 0 | 0 | 0 | 0 | 0 | 86 |
| 2021 | 0 | 0 | 0 | 0 | 0 | 83 |
| 2020 | 0 | 0 | 0 | 0 | 0 | 98 |
| 2019 | 0 | 0 | 0 | 0 | 0 | 98 |
| 2018 | 0 | 0 | 0 | 0 | 0 | 111 |
| 2017 | 2 | 0 | 0 | 0 | 0 | 122 |
| 2016 | 1 | 0 | 0 | 0 | 0 | 123 |
| 2015 | 0 | 0 | 0 | 0 | 0 | 51 |
The vehicle systems named most often in Triumph Street Twin complaints (one complaint can name several).
In the owners’ own words, as filed with NHTSA. Unverified reports; NHTSA removes personal details before publishing.
The contactâs son owns a 2017 Triumph Street Twin. The contact stated that whenever the motorcycle was started, the RPM increased and the engine revved while in a standalone position. The contact stated that once the motorcycle was placed in a straight position and the handlebars were straight, the RPM decreased. The contact related the failure to NHTSA Campaign Number: 19V133000 (ELECTRICAL SYSTEM); however, the VIN was not included. The contact stated that on a separate occasion, approximately two weeks ago, the motorcycle failed to accelerate as intended with the throttle engaged. The motorcycle was taken to a Motorsports dealer, where it was diagnosed and determined that the fuel pump …
OVER TIME, THE TURN SIGNALS STOP WORKING BECAUSE OF HOW TIGHTLY THE WIRING HARNESS IS TO THE HEADSTOCK. BECAUSE OF THE OVEREXTENSION OF THE WIRES, THE CONNECTION FOR THE TURN SIGNALS BEGINS TO BREAK THUS CAUSING DAMAGE.
THERE IS A SMALL MAGNET EMBEDDED IN THE KICKSTAND OF THIS MOTORCYCLE AS PART OF THE BIKE'S START INTERLOCK SYSTEM. THE ENGINE WON'T RUN IN GEAR UNLESS THE KICKSTAND IS RETRACTED AND THE MAGNET IS IN CLOSE PROXIMITY TO A SENSOR. THE MAGNET FELL OFF, THUS DISABLING THE MOTORCYCLE. THIS OCCURRED WHILE AT A STANDSTILL WHEN I TRIED TO START THE MOTORCYCLE IN MY DRIVEWAY.
Repair instructions and other communications the manufacturer sent dealers about known issues. A TSB is not a recall, and the repair is usually free only while the car is under warranty; ask your dealer for the bulletin number.
Dealer notice announcing the availability of Daignostic software and dealers should begin using it immediately.
Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-07 and dealers should begin using it immediately.
Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-06.1 and dealers should begin using it immediately.
Dealer notice announcing the availability of Triumph Diagnostic Tool version 2026-06 and dealers should begin using it immediately.
Dealer notice announcing the availability of Technical Bulletin 264.
Technical Bulletin 264 provides instructions that relates to: Triumph Diagnostic Tool - New Motorcycle Connection and Diagnostics Workflow, Triumph Diagnostic Tool - End of Support for Microsoft Windows 10.
Dealer notice advising the availalbility of TDT version 2026-05.2 which resolves the ABS as Not Connected issues in SmartScan, on Tracker 400 & Thruxton 400 models.
Dealer notice announcing the availability of Diagnostic software 2026-05.1 and dealers should begin using it immediately.
Dealer notice reminding of Motorcycle Cleaning, prohibited use of High-Pressure & Steam Cleaning equipment.
Dealer notice announcing the availability of Diagnostic software 2026-04 and dealers should begin using it immediately.
Dealer notice announcing the availability of Diagnostic software 2026-03 and dealers should begin using it immediately.
Dealer notice announcing the availability of Diagnostic software 2026-02 and dealers should begin using it immediately.
Source: NHTSA Office of Defects Investigation public data (complaints, manufacturer communications, investigations), model years 2010 and later. Had a safety problem? Report it to NHTSA.
In complaints filed with NHTSA for model years 2015–2022, owners most often name: electrical system, engine, fuel system, gasoline. 3 complaints are on record.
No. A complaint is an unverified report from an owner. A technical service bulletin (TSB) is the manufacturer telling dealers how to fix a known issue; it is not a safety recall and is usually covered only under warranty. A recall is a formal safety action, and its repair is free.
File a vehicle safety complaint at NHTSA.gov. NHTSA reads every report, and patterns of complaints are what open defect investigations and, eventually, recalls.