Hot Racing Arrma Kraton 8S Triple Bearing Support Steering Blocks are an optional upgrade that feature triple bearing support steering blocks (axle carriers) for improved durability, double lock ball hub nuts and carbon fiber steering arms.Features: CNC machined aluminum, anodized black 5 mm carbon fiber steering arms Double lock Aluminum hub nuts with Delrin cups and o-ring position locks Triple bearing support adding a 12x24x6 bearing in the inner of each steering block to further strengthen the existing stock bearings Replaces Arrma ARA330558 and ARA340158 front steering blocks and Steering armIncludes: (1) left aluminum axle carrier with with carbon fiber steering arms (1) right aluminum axle carrier with with carbon fiber steering arms (4) aluminum hub nuts with Delrin cups and o-ring position locks (4) double lock hub nuts (2) 12 x 24 x 6 mm rubber shielded middle bearing