SMJ LCG balance weights
SMJ in Japan have released a range of LCG balance weights in various sizes. The round balance weight is highly versatile with the surface area of the mounting point reduced as much as possible so that it does not affect the chassis flex when installed in the chassis. A unique feature is the two mounting screw holes that allow you to fine tune the weight balance. It also means it can be prevented from interfering with other parts and allows for more flexibility in the location of installation. Available in 5, 7.5 and 10 gram weights.
Source: SMJ [smj-rc.com]