This is an upgraded design for the normal length ZMR arms for 6" propellors or the XMR with 5" propellers This includes better motor protection for 22XX sized motors and a reinforced neck to solve the stress riser problem in the ZMR 250 standard arms.

This is a ZMR upgraded arm that will convert your ZMR to a 220mm sized frame for 5" propellers, or your XMR frame to a 180mm for 4" propellers.  It includes the same extra protection for 22XX sized motors and reinforced neck as the full sized arm.

Top plate for the XMR frame.  Works with both short (180mm) and long (210mm) arms.

1.5mm middle and bottom plate for the XMR frame. Compatible with both the short (180mm) and long (210mm) arms.

FPV Board Camera mount plate for the XMR frame with 35mm standoffs.

Camera mount plate designed for PZ0420M.  Fits at a 25 degree angle between 35mm standoffs.

This is the 5" arm for the TrueX replaceable arm Chameleon mod.  The design isn't quite symmetrical so you'll need to flip two of the arms over when you install them in the main plate.  These arms can also be used with the optional bottom plate to make a 6" true X pod style frame.

This is an optional bottom plate to re-enforce the arm connection. You can also use two of these to make a true X acro quad, or combine it with your favorite top plate to make an FPV quad.

This is the main plate for the TrueX Chameleon mod.  It is 3mm thick, designed to take inset nuts for the main arm screws in the center, and works together with the 1mm spacer plate to fit the stock Chameleon aluminum parts.

This is the spacer plate that allows the 3mm main plate to work with the 4mm aluminum hardware from the Armattan Chameleon.