The bike sits perched atop a mound of ice in Minneapolis' Loring Park, its front wheel raised in a permanent wheelie. Fresh, snow-white paint covers a simple, bare-bones frame.
Although it hasn't been abandoned, this bike has no rider.
It's a ghost bike — a roadside memorial marking the site where a cyclist was killed.
The bikes started appearing around the Twin Cities several years ago, next to major thoroughfares, near busy intersections, even along quiet stretches of road. Sometimes they're adorned with flowers, photos, handwritten notes and the name of the rider. Others are starkly anonymous. A few have been the touch point for memorial marches and rides.
But almost all of them appear quietly, usually overnight, and disappear just as quietly.
"The nature of ghost bikes is that people aren't even sure who puts them up," said Garrick Yoong, a Minneapolis cyclist who has helped install a few of them.
Even though Minneapolis has a ghost bike archive (www.ghostbikempls.org) similar to an international site (www.ghostbikes.org), no individual or group claims responsibility for assembling and installing them. Even people in the tightly knit cycling community rarely know who's behind a bike, partly because those who are don't want to take the credit.
"It's not done for any other purpose than to mourn the cyclist who died," said Danny Gamboa, a Los Angeles-based filmmaker who's working on a feature-length film about ghost bikes.