MA1 Modular Cross Rig Monkey Bar - 1.1m If you were wanting monkey bar sections in your cross rig, you will need a bunch of these monkey bars. We stock these in 1.1m and in 1.8m that can easily slot into any cross beam that features monkey bar receivers. This is a 1.1m monkey bar that is compatible with all of our MA1 Modular Rig Accessories and Parts.