Elcon Rim Protectors (Set of 2) Fits the FG Monster Truck Wheels
Same principle as the 18812 and the 13801 but fits on the MT wheels.
Please note the protectors will not fit the MT rims when they are new.
There appears to be several different types of MT rims in circulation, with different offsets on the wheel square.
When a MT rim is fully worn out on the wheel square then the rim protectors DO fit ALL FG MT rims.
It is therefore really a repair kit for rims with damaged inner squares.