Published Aug. 7, 2026at6:00am
The first time Sabrina Yeung rode an e-bike, she broke her arm.
The 33-year-old tech worker was leaving Hayes Valley the evening of June 19 to meet her boyfriend at Haight pizza spot Jules — a little too far to walk, but too close for an Uber. She had some time, so it seemed like the perfect chance to try a Lyft e-bike.
But when she began pedaling, she was unprepared for the jolt of power from the motor. After a few feet, she fell, using her left arm to catch herself and the heavy bike. The next morning, she felt a sharp pain whenever she twisted it.
“That’s when I realized, ‘Oh, it’s probably more serious than just a simple strain,’” she said.