ARC R12 low friction diff case & pulley
New option parts for the ARC R12 with the release of this low friction diff case & pulley. These kevlar transmission parts not only make the transmission smoother but also extend the lifespan of the belt. Available as the complete set shown above or separately as diff case, 19T Centre pulley or 38T front pulley.
Source: ARC [arc-rc.com.tw]