Der Box Rr Two 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, not compatible with other 11-50 cassettes
• Same functions as the Box One Prime 9 derailleur with more affordable materials
• Glass fiber/nylon composite, steel, aluminum alloy
• Tri-Pack limited slip clutch
• Forged inner and outer cage
• Pivot-Tech cable stay
• Precision sealed bushing pulleys

Specifications:

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