Der Box Rr Three Prime 9 9S X-Wide Bk

• Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory - it embraces range without adding complexity
• Intended for use with Box Components` Prime 9 speed group, no compatible with other 11-50 cassettes
• Similar design as the Box Two Prime 9 derailleur with more affordable materials
• Glass fiber/nylon composite, steel and aluminum construction
• Limited slip clutch
• Stamped inner and outer cage
• Standard bushing pulleys
• Direct channal cable stay

Specifications:

• Model:
• Speed:9sp
• Max:
• Wrap:
• Cage/Mount:Long
• Ratio:2to1
• Color:BLK
• Wgt:
• Compatibility:
• Swing:
• Fit