Der Sunrace Rdmz900 Md 12S Direct Bk Sld Pulley

• Shimano compatible wide range 12 speed derailluer
• Improved shifting precision and performance
• Adjustable chain stabilizer
• Carbon fiber outer cage
• Lightweight machined AL7075 pulleys with sealed cartridge bearings

Specifications:

• Model:MZ900
• Speed:12sp
• Max:
• Wrap:
• Cage/Mount:Mid
• Ratio:2to1
• Color:BLK
• Wgt:
• Compatibility:
• Swing:
• Fit