You can set your own code, so you don't need to carry your key with you when you cycle. Because the BORDO Lite Mini is so small, it fits in one of the most compact cycling pockets. And if you want to make it even easier, you can use the SH 6055 Selle Royal holder. With it, you can mount the BORDO Lite 6055C under the Selle Royal saddle to save space in the jersey pockets or on the bike frame;