TOPEAK Alt-Position Cage MountsALT POSITION CAGE MOUNTS DESCRIPTION: Alt Position Cage Mounts provide an alternative way to raise or lower your water bottle cages when they are assembled on rear hydration devices for you to comfortably mount or dismount your bike. They also provide mounting location options for Topeak Ninja Bottle Cages and allow use of different Ninja bottle cage series combinations on smaller frames and tighter spaces. MATERIAL Aluminum COMPATIBILITY Topeak TRI