Saddle City Bike 100

Featuring a simple, strong and aggressive design, the Ultra 410 is the ideal entry level u-lock and rounds out the Super Ultimate and Ultimate line-up in. It's simple design conceals a number of high-tech advancements in security.

Serfas® City Bike saddles are designed for riders on the move that may want that extra leverage & holding position when moving their bike and the built-in rear saddle rail handle is also a convenient way to carry a small u-lock while in transit.