Avid B44.2 brass chassis weight
Designed for the Avid B44.2 hard-anodised aluminium chassis kit is this 31g brass weight insert. It rounds out the already existing range of delrin, aluminium and steel inserts in order to provide a maximum of tuneability. The insert attached to the chassis via 4-40 screws and adds 31g of weight between the saddle pack battery, something that can be helpful on low-bite or very bumpy tracks.
Source: Avid [avidrc.com]