Shimano Acera RD-M3020-8, 8/7 Speed Rear Derailleur Black

This high-quality Shimano Acera RD-M3020-8, 8/7 Speed Rear Derailleur uses Double Servo technology that gives you smooth, precise shifting for improved mountain bike performance threby helping you to ride on challenging terrain.. Rear derailleur with Double Servo technology. Smooth and precise shifting. Versatile performance. Wide compatibilitySpecifications. Model No: RD-M3020-8. Series: ACERA M3000 Series. Colour: Black. Compatible Chain: HG 8/7-Speed. Total Capacity: 45T. Cable adjuster: Yes. Mount Direct Attachment: Conventional. Fluoric Coated Link Bushings: 1. Low Sprocket Max: 40T. Low Sprocket Min: 30T. Max. Front Difference: 20T. Pulley Sunken Type: Pulley bolt. Pulley Teeth: 11T. Pulley Cage: SGS. Top-Normal Spring Type: Double servo. Top Sprocket Max: 12T . Top Sprocket Min: 11T. Rear Speeds: 8/7