The Fidlock TWIST Systemprobably the worlds´ most innovative bottle mounting technology on planet earth. Our Fidlock TWIST bike base is one of the essential parts of our system. Thanks to the easy mounting it fits to all BCM-64 bike mounting threads and takes all Fidlock TWIST bottles and also other TWIST products. Sure the TWIST bike base comes with every Fidlock TWIST bottle. But as bikers tend to own more than just one bike and would like to go on using the beloved Fidlock technology there is a simple solution. Get yourself another Fidlock TWIST bike base, mount it to your new love and go on riding! Easy mounting with all BCM 64 bottle cage mounts TWIST technology - intuitive handling Magnetic guide and mechanic locking system Stays in place safelyno more lost bottles No annoying rattling any more Fits even into smallest frames Bottle at a full suspension bikeno problem!