BoxComponents Box Three Prime 9 X-Wide Rear Derailleur
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- 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
- Speed: 9sp
- Max: 50
- Cage/Mount: Long
- Ratio: 2 to 1
- Color: BLK