Xray Active Differential for XB2/XT2
From Xray, this unique Active Differential is a high-performance, adjustable rear gear differential for the XB2 that vastly improves the buggy’s speed and handling characteristics. The special design of the internal components using different angled segments allows the diff gears to engage on-power to increase the forward traction, making it faster and easier to drive. While the Active Differential is a performance option for serious racers who want to gain an edge on superior speed and handling, it is also of great benefit to drivers of all levels that want a more predictable and easy-to-drive car in all racing conditions. Also suitable for the XT2.
Source: Xray [teamxray.com]