Crankshaft for Derbi Senda 50 (up to 2006) with Derbi engine (EBE050 EBS050)

Top Racing is a brand of the Portuguese company Jasil, founded in 1950 as a metalworking company and increasingly involved in the two-wheeler sector since the end of the 20th century. Top Racing products are designed primarily for use in racing. Top Racing manufactures a wide range of products for scooters, motorcycles and mopeds. Best known are the high quality crankshafts in the significant black and yellow boxes.