MILWAUKEE (AP) — Harley-Davidson will unveil its first electric motorcycle next week — a sleek, futuristic bike that hums like a jet airplane taking off.

Harley plans to show handmade demonstration models Monday at an invitation-only event in New York. The company will then take several dozen riders on a 30-city tour to test drive the bikes and provide feedback.

Harley will use the information it gathers to refine the bike, which might not hit the market for several more years.

The market for full-size electric bikes is small now, but Harley President Matt Levatich says no one knows what the potential will be down the road.