After rounds in Australia and Thailand to open the 2017 FIM Superbike World Championship, the riders and their teams are back in Europe for the third race weekend of the year, the Pirelli Aragon round in Spain. World champion Jonathan Rea has made a perfect start to his title defence with four consecutive victories, but fellow Brits Tom Sykes, Chaz Davies and Alex Lowes are also in the top four and will be looking for podium glory at the MotorLand Aragon circuit.