Shimano Pulley Set RD-M2000, RD-M370 - Jockey Wheels, 11T for Altus 7/8/9 Speed. This is a genuine Shimano replacement part for Altus RD-M2000/370 rear derailleurs. The set includes guide pulleys and is designed for 7, 8, or 9-speed systems. It is black in color and made in Japan. Quantity: 1 set. Brand: Shimano.