This Swingarm Cover will be shipped as a pair for the left and the right side. It is made of high quality carbon fibre and covered with UV resistant clear lacquer. The article number SCA.022.S100S.K has an ABE/street homologation. The article number SCA.073.S1RAB.K is specially made for the race track. You have to glue on the carbon fibre covers. We recommend silicon glue.