56º North February 2019 | Page 85

The FIM EWC has two race categories: Formula EWC and Superstock. Formula EWC (black number plate background, white-light headlamps, minimum weight 175 kg) is the top category, and performance improvements during the race are possible. The overall appearance of the bike cannot deviate from the homologated model, but the fork, damper, swing-arm, brakes, radiator and exhaust can be modified. Teams are also given a relatively free hand to soup up engine performance. The chassis is equipped with a quick wheel change system.

In the Superstock class (red number plate background, yellow-light headlamps and minimum weight of 168 kg), the machines are practically identical to production bikes. The engine is as provided by the manufacturer, with very limited modifications permitted (injector jets and fuel mapping, clutch reinforcement, a different exhaust silencer, etc.). Wheels must remain as homologated, so teams need a good wheel change strategy at pit stops.

In both Formula EWC and Superstock, the fuel tank is modified to a maximum capacity of 24 litres and fitted with a quick refuelling device.

Both categories can compete for the FIM EWC world champion title. Superstock teams also compete specifically for the FIM EWC World Cup each season.