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Replacement derailleur cage inner plate for Shimano Dura-Ace RD-R9100 Di2 rear derailleur
Material GravityControl Rubber – extra soft
ranging from World Tour riders to World DH Champion
The M size stands as a perfect middle option
weighs a (claimed) 647-grams with a battery
Shimano EW-SD300 Di2 Electric Wire 800mm 00.5215.024.000 Replacement derailleur cage inner plateInternal Routing Improving on the previous SD50 model of electric wires, these SD300 wires are both smaller and lighter than their predecessors. Designed for internal routing, these wires are the magicians behind the magic of instantaneous shifting and lightning quick signalling, all the while keeping your bike looking sleek. And with a simple as you like setup, it's as easy as plugging this 800mm Shimano EW SD300 Di2 Electric Wire into compatible