The Topeak Modula Java Cage lets you take your morning coffee or portable speaker on the ride with you. Engineered from engineering-grade polymer and rubber, it features an adjustable height and diameter system to fit a wide range of cups and tumblers securely. The cage accommodates upper diameters of 75–90 mm and lower diameters of 60–78 mm, allowing a customized fit for most drink containers or Bluetooth speakers. Its lightweight and compact design mounts easily to any bike frame, keeping your beverage safe and accessible on city commutes or weekend rides.