FOX Fork Topcap Socket: 28mm 3/8 Drive Model=Ultegra Left Crank Arm CS-G100 cassettes combine microSHIFTs continuously

CS-G100 cassettes combine microSHIFTs continuously molded cogs with a CNC machined aluminum spider to deliver rapid precise shifting at a lower weight

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On The Bike Charging Socket/Cables allow for recharging without removing the battery

FOX Fork Topcap Socket: 28mm 3/8 Drive Model=Ultegra Left Crank Arm CS-G100 cassettes combine microSHIFTs continuouslyFOX Fork Topcap Socket: 28mm 3 8 Drive. Made of 7000 series aluminum the 6 point socket has no lead in chamfer and a low profile design for a precision fit that minimizes scarring. They feature external knurling to increase finger grip and a durable anodized and laser etched finish.