
Complete POLINI Speed Drive Evolution 3 Pulley - Yamaha/Minarelli (ref. 244.0574)
Designed by POLINI and 100% Made in Italy, the Speed Drive Evolution 3 is a monoblock pulley intended for 50cc scooters equipped with Minarelli/Yamaha engines. Machined from a lightweight aluminum alloy, it has a reduced mass of approximately 500 g compared to steel pulleys, a difference that affects the responsiveness of the transmission and thermal stability.
Its profile and finish promote better contact with the belt to optimize power transmission and limit slippage. On the road as well as on the track, this results in a sharper rev-up and a more precise acceleration response. The monoblock construction also ensures good stability even under intensive use.
Compatible notably with: YAMAHA NEO'S 4 (SA61), APRILIA SCARABEO 50 2T CLASSIC E4, MBK OVETTO 2T ONE. Ideal for urban riders and pilots seeking a more responsive and reliable transmission for daily use.