Aluminum Steering Blocks HD: ARRMA 6S BLX Kraton, Outcast, NotoriousDetails: Hot Racing heavy duty aluminum steering blocks (axle carriers) with carbon fiber steering arms for the 1 8 Arrma Kraton BLX, Notorious BLX, and Outcast BLX. See vehicle model compatibility in comments below. Features: CNC machined aluminum, anodized black 4mm carbon fiber steering arms Aluminum hub nuts with Delrin cups and o ring position locks Heavy duty rubber sealed bearings, with oversized inner bearings