Rear skidplate carbon and Aluminum The SRX8 has got the metal framework skidplate as standard function inside hard anodised chassisplate. As optional things Serpent now releases 2 lighter kind of the skidplate1 x coated alumnium1 x carbon fibre .Both are the seal/gasket to shut the diff instance. 600897 Skid dish Aluminum SRX8, 600898 Skid plate carbon SRX8