The bike will no longer downshift reliably. This jeopardizes the rider because the inability to select a lower gear to slow the motorcycle using engine braking and when arriving at a traffic light or an intersection that requires a lower gear to pull out from a stop safely into traffic. This has not been verified yet by a professional but I have an appointment in a few days from now (on August 5, 2025) with a local Triumph dealer to inspect and correct the issue. After some internet research, this downshifting issue/gearbox failure appears to be common among certain Triumph Bonneville models manufactured after a certain date. The bike did not and does not provide any indication when the failure to downshift will occur. There are times when gear selection functions flawlessly but then unpredictably will occur again during the same ride.

NHTSA ODI #11677706

Official recalls

26V078000 · Electrical System:alternator/generator/regulator; Electrical System:wiring:connectors/plugs/receptacles

Feb 11, 2026

Triumph Motorcycles America, Ltd. is recalling certain 2022-2024 Bonneville T100, Bonneville T120, Bonneville T120 Black, 2024 Bonneville T120 DGR, 2022 Street Twin, Street Scrambler, Street Twin Goldline, Street Scrambler Sandstor, 2023-2024 Speed Twin 900, and Scrambler 900 motorcycles. The wiring between the alternator and main harness connector may short circuit and overheat.

Consequence & remedy

Consequence: Overheated wiring increases the risk of a crash or fire.

Remedy: Dealers will replace the current 2-piece connector body with a single in-line crimped connector solution for each of the three wires from the alternator assembly, free of charge. Owner notification letters were mailed March 19, 2026. Owners may contact Triumph customer service at 1-678-854-2010. Triumph's number for this recall is SRAN 641. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov February 18, 2026. Motorcycles included in this recall that were previously repaired under recall 24V785 will need to have the new remedy performed.

Additional source detail variants (2)

Electrical System:wiring:connectors/plugs/receptacles

Consequence: Overheated wiring increases the risk of a crash or fire.

Remedy: Dealers will replace the current 2-piece connector body with a single in-line crimped connector solution for each of the three wires from the alternator assembly, free of charge. Owner notification letters were mailed March 19, 2026. Owners may contact Triumph customer service at 1-678-854-2010. Triumph's number for this recall is SRAN 641. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov February 18, 2026. Motorcycles included in this recall that were previously repaired under recall 24V785 will need to have the new remedy performed.

Electrical System:alternator/generator/regulator

Consequence: Overheated wiring increases the risk of a crash or fire.

24V785000 · Electrical System:wiring:connectors/plugs/receptacles

Oct 21, 2024

Triumph Motorcycles America, Ltd. (Triumph) is recalling certain 2022-2024 Bonneville T100, T120, T120 Black, 2022 Triumph Street Scrambler, Street Scrambler Sandstorm, Street Twin, Street Twin Goldline, 2023-2024 Scrambler 900, and Speed Twin 900 motorcycles. The wiring between the alternator and main harness connector may short circuit and overheat.

Consequence & remedy

Consequence: Overheated wiring increases the risk of a fire or crash.

Remedy: Dealers will install a new wire alignment clip, free of charge. Owner notification letters were mailed November 18, 2024. Owners may contact Triumph customer service at 1-678-854-2010. Triumph's number for this recall is SRAN 627.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

No exact-year investigations in this snapshot.