The Rinder manufactured amber lenses on all four indicator lights severely cracked during removal and reinstallation. The lenses must be rotated off the indicator base to change the light bulb. It is extremely difficult to remove the lens without an excessive amount of force. The rim of the lens that mates to the body of the indicator becomes so damaged during the removal and reinstallation process that the lens will not stay attached unless taped or glued. The lens should be designed to remove and reinstall easily and securely since bulb maintenance is a critical safety issue. This issue is noted by many Bonneville owners on various internet forums.
The worst 2025 Triumph Bonneville T120 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
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Problems by type
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Recalls
No recalls on record for this model year.
Technical service bulletins for the 2025 Triumph Bonneville T120 56
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.
What 2025 Triumph Bonneville T120 owners say
Most recent owner complaints, unedited.
Compare the 2025 Triumph Bonneville T120
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Questions about the 2025 Triumph Bonneville T120
Is the 2025 Triumph Bonneville T120 reliable?
Owners have filed 1 complaint about the 2025 Triumph Bonneville T120, close to a typical Bonneville T120 model year.
What is the most common problem with the 2025 Triumph Bonneville T120?
Lights, with 1 complaint.
How many recalls does the 2025 Triumph Bonneville T120 have?
No recalls on record.
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