Avid B6.1 titanium slipper screw
Coming from Avid and made for Team Associated’s B6.1 based vehicles is a titanium slipper screw. Using the part will reduce the drivetrain’s rotating mass while the pre-pinned design ensures everything is staying in place. The screw is made from billet 6Al-4V titanium, it scrubs about 50 percent of weight compared to the stock steel screw and it includes a spare pin and is usable with all B6.1, T6.1 and SC6.1 kits.
Source: Avid [avidrc.com]