(Reuters) – Harley-Davidson Inc stuck with a cautious outlook for 2019 on Tuesday that indicated its struggles with long-term competitive problems even as President Trump changed tune on the company, promising to stand up for it in global trade talks.

FILE PHOTO: The logo of U.S. motorcycle company Harley-Davidson is seen on one of their models at a shop in Paris, France, August 16, 2018. REUTERS/Philippe Wojazer

Shares in the Milwaukee-based firm, buffeted by Trump’s rows with Europe and China over tariffs, surged as much as 4 percent after the president called the European Union’s treatment of the company “unfair” and vowed to reciprocate.

The company also posted profit for the first quarter that was more than 30 cents per share ahead of expectations, but reported