Malossi's Double Power Cams are fine-tuned to generate an optimum and progressive power increase if matched with original cylinder or an exponential increase in power if matched with Malossi's 560 cc big bore twin cylinder set. Malossi has thought of both carburetted and electronic fuel injected scooters. In fact, first and second series, if equipped with Malossi's Double Power Cams, can produce noticeable power increases. Malossi's Double Power Cams result from long and meticulous engine testing with our in-house dyno. The manufacturing process was achieved by our engineering department's scrupulous requirements, starting with the material selection to the high precision machining to the heat and chemical treating and finally to quality inspection and assembly. Compatible with: - Yamaha: T-Max 530 12-_S