The worst 2020 Triumph Street Twin problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 1
Electrical system: wiring
- What is wrong
- Triumph Motorcycle America, LTD (Triumph) is recalling certain 2019-2020 Street Scrambler and Street Twin motorcycles. The wiring harness may have been misrouted, allowing it to contact the lower lug on main frame headstock.
- Risk
- Contact between the harness and the headstock lug can damage the wire and cause the engine to stall, increasing the risk of a crash.
- Remedy
- Triumph will notify owners, and dealers will apply a new VIN label protector to prevent wiring harness damage, and, as necessary, damaged wiring harnesses will be repaired or replaced, free of charge. The recall began August 28, 2020. Owners may contact Triumph customer service at 1‑800‑232‑3780. Triumph's number for this recall is SRAN 584.
Recall number 20V472000 · Recall details
Technical service bulletins for the 2020 Triumph Street Twin 101
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Dealer notice announcing the availability of Daignostic software and dealers should begin using it...
- Dealer notice advising to check for an immobiliser software update before replacing any TPMS components on...
- Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-07 and dealers should begin...
- Dealer notice announcing the availability of Triumph Diagnostic Tool 2026-06.1 and dealers should begin...
- Dealer notice announcing the availability of Technical Bulletin 264.
- Dealer notice announcing the availability of Triumph Diagnostic Tool version 2026-06 and dealers should...
- Technical Bulletin 264 provides instructions that relates to: Triumph Diagnostic Tool
- Dealer notice advising the availalbility of TDT version 2026-05.2 which resolves the ABS as Not Connected...
- 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.
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Questions about the 2020 Triumph Street Twin
Is the 2020 Triumph Street Twin reliable?
Owners have filed 0 complaints about the 2020 Triumph Street Twin.
What is the most common problem with the 2020 Triumph Street Twin?
There are not enough complaints to tell.
How many recalls does the 2020 Triumph Street Twin have?
1 recall, covering electrical system.
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