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Triumph Bonneville T120 (2016–2019): what actually fails

The documented failure patterns on used Triumph Bonneville T120s — the mileage window where each shows up, and what the repair typically costs at an independent shop. This is the same data NoLemon's Brief checks against every VIN.

Triumph Bonneville T120
PHOTO: AMENMOTO · CC BY-SA 4.0 · WIKIMEDIA COMMONS
2016–2019 TYPICAL 0k–50k MI UP TO $400

Main harness chafe causes engine cutout

The main wiring harness can chafe through under the tank and cut the engine without warning — recall 19V133000 covers 2016-2019 T120s and related modern classics like the T100 and Street Scrambler. Check the VIN for recall completion and watch for flickering dash lights or momentary cutouts on the test ride. The recall repair is free; harness damage found later is not.

BEFORE YOU BUY
Ask for repair records covering this item. If it hasn't been addressed and the car is in or near the mileage window, price the up to $400 repair into your offer — or make it the seller's problem.

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