See: Team Associated  

Team Associated have introduced new carbon fibre arm stiffeners and IFMAR-legal wing for the RC8B3.1, RC8B3.1e, T3.1 and T3.1e. First up are the arm stiffeners made from high quality carbon fibre to increase the rigidity of the suspension arms for improved consistency and stability, especially in warm climates. Rear stiffener plates increase rigidity around the outer hinge pin, a critical area when improving the overall effectiveness of an arm stiffener. The Buggy stiffeners are available in 1.0mm graphite while the Truggy stiffeners come in 1.5mm graphite, both with mounting hardware, 1.6mm pilot hole drill bit, and instruction sheet. Also new, the wings have been updated to meet IFMAR specs and are available in black or white colors.