Mounted Cannonball Grips

These new mounted cannonball grips can be used in building ninja obstacles, OCR training, climber sloper training, or as pull up balls. These grips have multiple molded-in grip surfaces that include a mesh pattern on the sphere radius, a radial pattern at the end of the sphere, and an annular pattern at the center. The ball is injection molded using a high performance thermoplastic for outstanding wear and strength that will stand up to any abuse.

The flat allows the ball grip to be hard mounted on virtually any solid, structurally sound surface. Each Mounted Cannonball Grip comes with a steel offset washer, a ½” hex bolt, a grade 8 washer, and a nut. The offset washer allows the Mounted Cannonball Grip to be mounted away from the mounting surface, so that your hands and fingers can get around and behind the grip. Recommended mounting surfaces include 3/4” plywood, 1” (5/4”) pressure-treated wood, 1 ½” board, or 2” to 3” wide steel tubing found on fitness racks and rigs. The Mounted Cannonball Grips can be attached to the FitBar Monkey Bar Truss, which comes with 1/2” mounting holes.

Non-rotating Mounted Cannonballs

For 3/4” plywood and 1” (5/4”) pressure-treated wood, specify a 1.25” bolt clamp length on check out.

For 1 ½” board and 2” wide steel tubing (Rouge Infinity and Echo Rigs / Racks, Titan T-2 / T-3, FitBar Rigs), specify a 2.25” bolt clamp length on check out.

For 3” wide steel tubing (Rouge Monster and Monster Lite Rigs / Racks, other 3 x 3 steel rigs), specify 3.25” bolt clamp length on check out. Installation is easy. To prepare wood for mounting: drill a 1/2” to 9/16” hole in the wood.

For both wood and steel tubing: install the bolt / grip assembly into hole, install the washer and nut on the other side, and tighten with nut with a 3/4” wrench while holding the ball. The nut should be tight enough that the Mounted Cannonball will not spin when used.

Rotating Mounted Cannonballs

Just when you thought these grips could not be any better, we upped the ante by offering a version of the Mounted Cannonball grips that can spin, hence the Rotating Cannonball Grip! These are the same grip balls as the mounted version with the exception of different mounting hardware, that allows the Cannonball grip to rotate when mounted. The resistance to ball grip rotation can be set when mounting using a standard flat blade screwdriver.

The Rotating Cannonball Grip provides an exceptional challenge to ninja warriors, OCR athletes, or rock climbers, and fitness enthusiasts who are looking for extra forearm and obstacle grip training. The Rotating Cannonball Grips can be mounted on any surface from a 3/4” plywood board to a 2” wide steel squat rack or rig. The Rrotating Cannonball Grips can also be mounted to the FitBar Free Standing Rigs like the Monkey Bar Truss.

For 3/4” plywood and 1” (5/4”) pressure-treated wood, specify a 1.5” bolt clamp length on check out.

For 1 ½” board and 2” wide steel tubing, specify a 2.5” bolt clamp length on check out.

Cannonball DIY Climbing Board

The Mounted Cannonball grip provides a unique alternative to climbing peg boards. Ascending or traversing a climbing peg board is relatively difficult for the average fitness enthusiast. Building a “peg-less” climbing board with our Mounted Cannonballs is easy to do. We recommend to offset the board from the wall slightly to allow for the nut and bolt protrusion on the back. Alternatively, you can use 1/2” T nuts and shorter bolts, available at any hardware store, to get the back of the board flush with the wall. You can also hang the board from a properly-sized rope or chain as shown above, ensuring that where it is hung from is structurally sound. We recommend using at least a 3/4” plywood or 1” thick (5/4) board be used for the climbing board. The wood does not have to be as thick as a typical peg board, it just needs to be structurally sound relative to the number and location of mounting points. CAUTION: When determining the number, size, and location of fasteners, mounting wall type, etc of any project that will carry human load, it is recommended that a minimum safety factor of 4:1 is used in the components, considering dynamic loads. For climbing training boards, ninja obstacle elements, OCR training, and other applications, the Mounted Cannonball Grips are a great tool.