Avid RC8B4 Carbon Arm Inserts
American company Avid Racing has released carbon arm inserts for the RC8B4 1:8 Buggy from Team Associated. Made from 2.0mm carbon fibre, the inserts are an addition set-up tuning option reducing the flex and twist in the arm. A common setting is to run them just in the front or just the rear to dial in the feel of your buggy. The left and right inserts are interchangeable.
Source: Avid [avidrc.com]