BOX E-Bike 9 Speed Rear Derailleur- Durable and efficient E-bike derailleur
- The Tri-Pack limited slip clutch is an advanced chain retention system that provides instant engagement and long-lasting chain dampening through the use of a one-way roller bearing and composite friction plates.
- Impact resistant, Pivot-Tech spring loaded cable stay keeps the cable, housing, and you out of harms way
- Precision sealed bearing pulleys
- X-wide fits up to 50t
- model|speed|cage|min/max|weight|color: BOX One|9sp|X-wide|11/50T|290g|Hard Onyx