AI Damage2020 Triumph Bonneville Bobber TFC reliability: common problems
The maker issued 44 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 44
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 36 |
| Powertrain | 0 | 0 | 1 |
| Other | 0 | 0 | 8 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- 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…
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…
Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-06.1 and dealers should begin using it immediately.
- 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 announcing the availability of Triumph Diagnostic Tool version 2026-06 and dealers should…
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
- Dealer notice advising the availalbility of TDT version 2026-05.2 which resolves the ABS as Not Connected…
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…
- 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…
- Dealer notice announcing the availability of Diagnostic software 2026-03 and dealers should begin using it…
- Dealer notice announcing the availability of Diagnostic software 2026-02 and dealers should begin using it…
NHTSA lists 44 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2020 Triumph Bonneville Bobber TFC?
There are no owner complaints in the NHTSA data for this year; the data comes from 44 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2020 Triumph Bonneville Bobber TFC?
NHTSA lists 44 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2020 Triumph Bonneville Bobber TFC from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2020 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.