The BiKASE Sidewinder ABC Adjustable Drink Holder is designed to securely carry a wide range of bottles on bikes with limited space or nonstandard frame geometry. Its adjustable design expands or contracts to fit various bottle sizes, including larger insulated bottles often used for long rides. The side-entry configuration allows easy access in tight frame areas, making it ideal for e-bikes, small frames, and bikes with frame bags. Constructed from durable, lightweight materials, the Sidewinder provides a firm hold while maintaining smooth bottle insertion and removal. It mounts easily to standard bottle cage bosses and offers dependable performance on pavement, gravel, and mixed terrain.