Scorpa has 300c engines after 2015 but a 2011 could have a 300cc motor..... get in touch with the importer of the SR models at Birkettmotorsport in Broughton, Cumbria and ask him to check his records using the frame number etc ...Scorpa is owned by the same man who owns Sherco and the motors are Sherco Motors basically........retrotrials.com has some information about Scorpa's history try there [Its in under the title 'Bikes' ....'Alfer'....'The story and rediscovery of the lost water cooled prototypes SCORPA ALFER' ...their story starts with a Spanish motorcycle called an Alfer but Scorpa are really a French concern ,although people on here seem to think they are Spanish because they are made in Spain and their development was originally carried out in Catalonia/Catalunya.