Service bulletins for the 2021 Triumph Street Twin
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
83 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Equipment and accessories are shown. Show all
| SMT-SB-615 | 2024-04-29. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Service Bulletin 615 instructs dealers to to fit a new wire alignment clip that has been introduced for the wires entering the female connector of the alternator lead. |
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| SMT-COM-04 | 2024-04-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Service Bulletin 615. |
| SMT-COM01 | 2023-12-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Diagnostic software 2023-06 and dealers should begin using it immediately. |
| SMT-COM01 | 2023-02-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice reminding of the new California Prop 65 regulation. |
| SMTCOM03 | 2023-02-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Technical Bulletin 225. |
| 22714 | 2023-01-03. Service bulletin. EQUIPMENT:ELECTRICAL. Dealer notice announcing the availability of Diagnostic software 2022-11 and dealers should begin using it immediately. |
| 22651 | 2023-01-03. Service bulletin. EQUIPMENT:ELECTRICAL. Dealer notice announcing the availability of Diagnostic software 2022-10 and dealers should begin using it immediately. |
| SMTCOM03 | 2022-09-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer notice announcing the availability of Technical Bulletin 225. |
| 20680 SVC | 2022-05-31. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Triumph has released Technical Bulletin 222 including 8 subjects across a range of models. |
| SMTCOM0118 | 2022-02-14. Service bulletin. EQUIPMENT; UNKNOWN OR OTHER. Dealer notice announcing the availability of new service tools that will be shipped automatically. |
| SB529 | 2022-02-01. Service bulletin. EQUIPMENT:ELECTRICAL:ANTENNA; UNKNOWN OR OTHER. Internal investigations have identified a need to reroute and secure the immobiliser antenna cable in the headstock area to prevent potential cable damage. |
| SMT-COM05-18MAY2 | 2021-06-14. Service bulletin. EQUIPMENT. Dealer notice announcing the availability of Service Bulletin 589. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.