Down River Bimini MountsSold as a pair, the Down River Bimini Mounts easily attach to your 1. 25" (LD) or 1. 5" (XD) frame pipe by simply tightening a screw. The plastic Bimini end cap slides nicely between two metal prongs and is locked in place by a screw, allowing the Bimini to be stowed quickly. The 1. 25in will fit NRS frames. The simplicity and utility of these mounts make setting up a bimini a breeze. Pro Tip DRE LD pipe (1. 25") is the same size as the NRS frame